What if you had a soilless mix buffering at 5.5 and then you add too much dolomite a the point now your mix is buffering 6.7-7.0But you were aiming 5.8-6.2Is there a way to lower your soilless to 6.2 adding something to the watering? since I cannot mix anything on the substrate right now at flowering week 2. No matter if my nute solution is 6.0 or 5.5, the runoff is always around 6.7.I'm starting with some deficiencies already. Still have 6 more weeks of flower.Is there a way to fix this?Thanks in advance

Hi guys recently switched to using sensi ph perfect. Wanting to know about prep for my clay pebbles. I normally soak my pebbles in ph’d water with nutes overnight after washing to get them in right ph zone. This will be my first time using ph perfect and they say not to use ph down with it. Just wondering if will need to no use it to set the ph or just let the ph perfect nutes do there thing with the pebbles thanks

First time posting. Room 1.2x1.2. Lighting 2x Telos 10 pro. 2x 15 litre AutoPots with coco. Temp 25c lights on, 20/21c lights off. Humidity 62% Week 7 flower. 2x same strain Tripple cheese. Nutrients: Shogun coco latest mix into res was EC1.8 ph 5.8 i use half RO and half Tap water. Water EC is around 0..1/.2 before adding nutes. silicone in first always and PK warrior mixed separately to dilute before adding. I’ve never had any issues except maybe have to drop the PH in the res a few times but by nothing much usually. .1/.2. this last week been doing exactly the same but keep seeing PH drops. Ph dropped to 4.4 from 5.8 in 24hrs Searched everywhere to look fo answers but none as yet. anyone have any ideas as to why. Plants look ok and still look as if they are growing and flowers are stacking. I’ve calibrated my ph pen twice (blue lab). planning on emptying the res cleaning it fully and new set of nutes not sure what else to do. please forgive my writing skills I have autism and I don’t usually put much on line.

Hi, Ive just started a grow again its my second attempt the first was doing well but had to get chopped due to house inspection, the plants look fine, and are doing well right now about 10 days in, however my Ph meter in the soil is reading over 7 like 7.3-5 ish and im reading mixed things about how much this matters in soil but i have seen it causing issues for nutrient uptake on other peoples grows and I really dont know the best action to take (if any) to avoid issues in veg/flower. The weird part is im using Ph down for watering and phing arounnd 6.5-7 but the soil ph isnt really changing and if anything it looks like its going up? How much should I worry about this? and would it be better to Ph even lower to push an adjustment through? Im really struggling with it because ive had 2 Ph pens that dont work and and relying on the liquid dropper to get the Ph of the watering water, and so its pretty inaccurate, also cant really be sure how accurate the soil Ph meter is considering it was a tenner off amazon. If you have any suggestions for reliable equipment/technniques I would love to hear it, and im hoping the answer will be ignore Ph, haha, cause its doing my head in. Growing in Bio bizz light mix btw 2x autos Og Kush and Gorilla Cookies Any advice appreciated thank you!

Hi I like my gadgets..so i got a wee Ph and TDS meter I ma not keeping a diary might do so next grow, But Miracle-Gro and the powdered Blueberry fertiliser do lower the PH of my water I water / feed untill the pot starts draining through and i remove the excess water ... Fuck at this stage they drink A LOT about a litre per plant every 2 days I do PH and PPM the wash off (not to worried about the PPM but PH comes in at 5.2 /5.4 So far it does not seem to have harmed the plants but it seems a bit low Should I bring the PH of my water before feeding up .. I believe even baking soda can be used for that?

Good evening growers, Setup: Hydro drain to waste. Going into week 1 of flower. Strain: RQS Green Crack Punch Using Shogun nutrients. Silicon Ph down to 5.8 A & B Katana roots Calmag Zenzyme Sumo boost. During veg i went up to 1.6 EC So I am starting week 1 of flower at 1.6 EC & will increase it by .2 each week. What I want to know is do i have the right idea? Thanks

Hello, Looking for some advice, New to coco, about 10 days into early veg with some ICC in 2l pots estimate around 3 or 4 days til re pot up to 16L as roots just starting to show at bottom of pot. like a plonka already made a rookie mistake and only fed 24hr water for first 2 feeds, as i am now led to believe i should of at least started with a rhizo 2ml per L 0.6 EC i have been feeding every other day for first week to give the roots some growth, began feeding every day on day 7. from the start i have been feeding them 300ml and been getting 75ml to 100ml in run off so a good bit over the 25% minimum required, the clones were well established in rockwool. from day 7 plants have been on (ml per 10L) rhizo 20ml calmag 2ml superthrive 3ml zenzime 2ml Then ECd with CANNA A & B to 1.0 usually that's usually around 10ml of each PH down to 5.8 Now here comes the kicker testing the run off, consistently i have been getting readings of 0.4/0.6 EC 6.0ph, im assuming this isnt normal and is a sign the plants want more nuets as they are using up a good amount of the EC, little bit nervous of increasing the EC already as i read early veg should be around the 0.8EC mark plants look perfectly happy at the minute but i am by no means an expert........just an apprentice.... Environment sat between (25C RH 40% lights on) (21C 50% RH) lights of (18/6 cycle) i am using a blue lab truncheon and ph monitor for those wondering. Any advice much appreciated, Thanks again JB

Hello everyone, I am running a 6 bucket rdwc with cyco nutrients, using bloom a+b, swell, b1, sugar rush, supastiky, and Dr. Repair at dosages suggested by Cyco dwc calculator. I'm noot using clones and some plants have taken better to the system than others. I'm about week 5 but also previously i've noticed the PH dropping from 5.8 to usually 4.2 overnight and EC slightly rising. Any ideas on the reason behind the plummet? Thanks

Hi All Starting to get back into this after a LONG time out and buying absolute rubbish to smoke! My memory is very hazy tbh so been watching a few Vids etc. I have roots just poking out of RRiot cubes and looking transplant into 3" cubes. What EC do i need, just looked at this video and he states 400PPM, is that not about 0.6? That seems high to me?? Plus his PH seems low, should it not be 5.8, should he not of soaked them for longer and let it 'level off' as we know RW increases PH. Also surely he should of trimmed them roots, would they not rot off at that length? I am SO looking forward to this guys, i've missed my own looked after and cared for smoke, i have some nice Gelato!! I also might add a tiny bit of Nitrozyme as well to the soak mix. Cheers guys and so glad to be back on here, i look forward to replies and the great chat, god i have MISSED this place......... VIDEO -

Hey guys, Im currently growing 4 autos in coco (70/30) and using GH tri-part nutes. All around 6 weeks in. Growing under an SF2000 LED. Only in 6 litres pots due to limitations. Temps regulated around 25 daytime and 20 at night with around 50% Humidity throughout. Two are in earlyish bloom (Cheese & Amnesia Haze - RQS) and two are in preflower (Bluematic & Northern Lights - RQS). Im feeding around half the recommended dose from GH along with Rhizotonic, Cannazym (and Boost on the flowering plants). Nutes are PH'ed to 5.8 before watering. Ive been recording the runoff ppm and Ph and the Amnesia Haze is slowly drifting up from 6.9 a week ago to 7.1 today. It looks a bit short and some of the leaves are a bit blotchy. I know I made a few mistakes early on (under-watering for a week and flushing with non PH'ed tap water). Heres a canopy view: Amnesia Haze Auto The PH runoff for the others is fairly consistent and they all look healthy and larger: NL - 6.7-6.9 Bluematic - 6.7-6.8 Cheese - 6.5-6.6 Is this likely a PH issue? Seems i might be getting nute lockout. What is the best way to deal with this drifting PH? Is it a bad idea to flush when in early flowering stages or are there any other options/suggestions? I know some people dont bother with monitoring the runoff, but I have been as this seems like it could be a PH issue and i want to keep it under control as much as possible.

Hi this is my first post I'm new to the game, like most people I'm sick of spending bare dollar so decided I want to grow my own stuff I want to jump straight into growing autos hydroponically with the DWC method as it seems to be more beginner friendly, however it does appear to cost slightly more but I'm sure it's worth the initial investment! Things intend to purchase: (please advise me if I could change something to make it better) - x2 Pre made DWC buckets with air pumps + stones from eBay. - x1 spare bucket (for regular cleaning) - FloraMicro/Grow/Bloom all 1L bottles. - VIPARSPECTRA Full Spectrum 300W - Grow tent - Air fan - Canna AQUA Clay pebbles for growing medium - x2 rockwool cubes - PH / PPM tester - Water temp tester - x2 Auto seeds I get how the system all works... what gets me with DWCs is the nutrients, I think I'm kind of understanding however I have a few questions if anybody knows some may be daft but we all start somewhere gimme chance 1) Do you put nutrients in the water once you've put your seedling into the rockwool and into the clay pebbles? If so how much is recommended for an auto plant? 2) When water levels drop should I fill it with just tap water and add nutrients every few days or when I clean the buckets every 10 days? Or should I fill it with both water and nutrients and keep in the PH range of 5.5 - 6.5 I'm aiming for a constant 5.8 as I believe this is a perfect ph for hydros? 3) How regularly should you put nutrients into the water? 4) Should I use an automatic water heater? Or would this cause more harm than good? The temp should be between 15 and 20 degrees celsius right? 5) How would I know when to turn the lights to 12/12? 6) Recommendations for 2 auto seeds with my 300w LED preferably two different types? A 50/50 mix ideally a social high not one to knock me out 7) Finally what size grow tent for two autos on 300w LED? I wasn't too sure where to put this so if it's in the wrong section I apologise I went completely off nutrients and onto other shit, I'm pretty baked haha Cheers

This is my first time using autopots and I've come across a massive salt buildup problem to the point where I'm starting to see it appear on top of the coco and my plants are turning pale green/yellow. I think the problem is that since starting on the autopots they have only had one feed of ph'd water (around 3L each from res over 4/5 days) between veg and flower. I'm now on day 27 of flower and my guess is that the salt buildup has caused the ph of my medium to drop and lockout some nutrients. I first noticed a week ago that my plants had started to turn a lighter shade of green and one plant had started to get yellowing fan leaves. I thought this was an N deficiency so I upped the N in my next feed and shit has got way worse, now almost every plant has yellowing fan leaves with some getting rusty blotches spreading from the inside out. I have cleaned out my res and filled it with ph'd water, I'm planning on flushing them for 3/4 days and going from there. Is this the route you would take? If anybody has any experience using autopots how often do u feed just water and what nutes do you use? I'm currently using the full ionic range with the coco base nutes. Any replies would be appreciated. Cheers

I have biobizz nutes/soil going with rainwater, any idea if my pH should be good? I've thought of adding about 15% of my hard alkaline tap water to the solution to bring it up slightly to 6.5. From what I can tell rainwater is 5.5ish but Is brought up by the co2 in the air as it falls, I guess I'm gonna need a pH test really. I thought rain water with biobizz nutes and compost would be golden and my pH woes would be over..... but my plants say otherwise (they aren't too bad but need tweaking). Any rainwater users in soil out there got a two pennies worth would be mucho appreciato

I'm sitting here smoking and over thinking as usual. I've just indulged in a humidifier and a RO dispenser, I love a gadget, I should learn how to grow first lol. My question is simple, I grow in coco btw; Do you need to PH the RO water for the humidifier ? If it don't matter why not ? Should I as I've not been doing Ps plants love it

hey yall does any body have any advise for us using canna terra nutes in there canna terra professional soil mix doing 6 autos 3x LSD25 BY FASTBUDS & 3x GORILLA GLUE BY FASTBUDS in 7.5lt pots under a 600w hps with a dimmer set to 250w in a 120cmx120cmx200 tent with a big intake fan enviroments pretty perfect to be fair just wanna know what are the best booster to use with the terra range should i grab their canna boost? ive got canna terra vega + flores im also doing a bio bizz grow so ive got bio grow + bloom root juice alg a mic topmax bio bizz ph - /+ would i be able to use any of the bio bizz product with the terra range ? has anyone here done so ? let me know should i ph with the terra as i dont with bio bizz but when i do some kettle water with tap water to get it the right temp to water the plants the ph is at 6.5 im with adjusting anything just normal tap+hot boild water my ph pen sound off ? or im very lucky aha im in a area where my water is very soft thats what its say when ive checked anyway

Hi, I'm starting my second DWC grow (5 plants in one big pot) and one of the things I hated was lifting the lid and checking the PH/EC (especially when the plants grew big). I was thinking to get a Hanna or Bluelab Guardian/combo meter type setup where I could leave the probes in continuously to make my life easy. I was wondering if the probes can be left entirely submerged (including some of the cable that goes back to the meter) or is it just the tip of the electrodes that can be submerged. I cant find any info on how these things are installed and would be grateful for any advice from someone who's is in know. Manufacturers always show the setup on the left, whilst I just want to dunk it in the drink like on the right....if you guys do it like the setup on the left, how do you ensure that only the end of the sensor is submerged (I always fill up to slightly different levels and also as the plants drink the levels lower). I don't feel brave enough to permanently install them by cutting holes in the side of the basin. +-------------------------------+ +-------------------------------------+ | | | | | | | | | METER | | METER | | | | | | | | | | | | | +-------------------------------+ +-------------------------------------+ \--- | | \- \ - | \ ----- | / | -----/ \ | \ -\ | / | -- / / \ | / | | | | / \ +----|-------+ / / | | | / | \ | | | / | | | \ / \--------------+----+--+----+-------------------------------------------|-----------------------------------| | | | \ / \ | | | / | | | \ | \ | | / / | | | | | \ | | / / | | | +---|-------+ / \ | | | | | | | | | | / \ | | +----+-+----+ / | | | | | | \ +--+ | | / | | | / \ | | | | | | / \ +-+ / | | |--------------------------------------------------------------------------------------/ Cheers

Evening UK420, this is my first post. This Is also my first grow, I’ll get straight to it I’ve got a flexi tank which I fill with water, I let it stand for 24 hours whilst pumping air into it with air stones and an air pump, I ph my water to 6.5-6.8 just before watering and I’m growing in soil. I’ve been told to water using water that is 18-20°C, how does everyone maintain this temperature ? Also I bought a tank heater however it’s made for fish tanks so was wondering what heaters do you use to heat the water ? Also I noticed my humidifier has been hooked up to a tank of water that’s got algae running through it I’ve since drained, cleaned and replaced with fresh water but will the couple of days that it was running with dirty water affect my grow ? lots of questions, I know. Thanks in advance to anyone willing to help with anything

Hey all, Need some help with my plants!! They're all buggered!! So they were all healthy until two weeks back when i added some cannazyme to my fed to help get new roots and clear the dead ones. PH was fine. They were looking good for a day and then all started to droop. Didn't want to water straight after so waited until they dried out. Fed them with AN Revive and they were fine again for a day and then drooped. The PH had dropped somehow to 5.5ish (PH'd the feed 2 days later when they looked droopy. Fed them again when dry at PH 7.2 - to try and balance it out. Again droopy. G13 Labs Maltezerz PH meter I was using was now broken. Got a bluelabs meter checked the feed i'd previously given and it was 6.7ph - not 7.2 Came in today and they all look screwed - close to death! The stems are all flimsy and they look awful. This is one of them below. Just fed her plain RO water hoping she'll bounce back. Anything else I can do? I tried to PH the run off but it wont read. What else can I do to save the other two plants? Any help would be appreciated

i'm about to go nuts. when i have to adjust my pH, which i already did just 12-24h earlier, one more time, i will fucking kill myself. AAAAA somebody pls send help. jk but seriously, how do you guys get your pH to stabilize? mine is out of control, it's crazy. how is it even possible, i can put 3-4mL of ph-down in my res (filled to 40L at max) every day to get it down to ~5.8 and not even a day later it just jumped back to insane 6.8 again. every fucking time/day, when i check it. huge upswings again and again. it doesn't stop. there has to be 50% ph-down in there by the time it gets down to the last litres. i don't get it. just R.O. water, with 10-20% tap (EC .7) mixed in nutes: canna coco a+b, rhizo, cannazym, calmag ah right, sometimes i also use some citric acid in addition to ph-down. even tried adding NaHCO3 to buffer. only helps a little bit. and mineral magic (silica) ... fuck that shit

Hello everybody I’m going for my 1st indoor grow and I’ve chosen to give DWC a go as I’ve always wanted to master hydro. ive got a 1.2 x 1.2 x 1.8m hydrolabs tent...which is bloody lovely to be honest ive got a 600w digital ballast light with parabolic hood Rhino pro carbon filter 125x300 Ruck hi power fan with a digital fan speed controller attached to that 70l oxypot xl reservoir (with two oxygen stones) I’ve got aquarium water heaters to maintain solution temperatures A fan to circulate air inside the tent I’ve gone with canna Aqua Flores and vega , and have canna start, cannazym, rhizotonic, and canna boost accelerator as my nutes....(I’m sure there is better out there in regards to cost and results but I thought I couldn’t go wrong with them for now) i got got some silver bullet roots too just to be safe ive got a PH and EC meter with buffer solution for both ive done a test run and generally my environment has been running at... LIGHTS ON; 24.5 degrees Celsius 50% humidity LIGHTS OFF; 16.5 degrees celcius 50% humidity IM REALLY HAPPY WITH THOSE RESULTS what do u guys and girls think???? I WILL BE TRYING TO WARM THE GROW ROOM UP WHEN THE LIGHTS ARE OFF DURING THE 1ST 3 WEEKS OF FLOWER THOUGH...AS IM AWARE THAT THIS CAN PREVENT UNNECESSARY STRETCHING OF THE PLANTS DURING THAT PERIOD...would anyone be able to confirm this to be true??? Just going off previous research on that one but thought it might be a valuable tip to any grower if it’s true...? my main area of concern is the PPM of my local rap water... an R/o system is a no go for now but if all goes well I will invest in one for future grows... anyway... the PPM of my rap water is 212ppm (after I’ve put it through a filter jug)... is this fine for seedlings? Baring in mind I wanted to add some cannastart to the seedling solution... And once I start early stages of veg...will this ppm level have too much of an affect to the amount of nutes I can add at one time? Or am I just worrying about nothing? My ph is 6.5 so I will probably need to adjust with ph down to get to around 5.7-5.8 and I’m aware that this will bump my ppm levels up too...? sorry for for the essay! And cheers for reading! Experts please feed me with ur knowledge Cheers

My plants aren't happy and I don't know why I'm using - 10ml tomorite mixed with 2l water every two to three days - liquid seaweed now and again, as foliar spray, sometimes with neem - 10 liter pots filled with organic peat based soil and perlite. Photos - - - -

Hi all, I am trying to build a really simple system to adjust PH automatically for a coco grow. Basically the idea is a permanently submerged PH sensor in the tank talks to a rasberry pi or similar which then releases the required amount of (in my case with my water supply it will always be) PH down. I have a buddy who can handle the coding, what I am really looking for are suggestions as to a dripping mechanism or some type of optic (like for pub spirits) that could be manipulated with a motor or in some way switched on/off by the controller. Ultimately we would use the same mechanism/optic to dose the nutes into the mix but for now we just want to identify a suitable mechanism for administering the ph adjustment liquid. Have done loads of google searches but still havent a clue. have read over the rasberry pi threads on here but they seem to be mainly for environment controllers etc. and WAY more complicated than what we want/can handle just looking for a simple but accurate mechanism/tool for dosing small amounts of liquid that we can automate mechanically with some kind of motor (or failing that gravity) any suggestions very welcome, cheers MM

Hi Everyone, I am new here so firstly I would like to say hi to everyone and that I look forward to what I hope will be a long journey here on this forum. I have never grown before and I am currently prepping for my first, I will be germinating this weekend. I have just been calibrating my new pH & EC readers (both are Essentials) and getting base readings for our water. Here's where things are getting a little strange, we have an undersink reverse osmosis filter (we've had this for some time now as I don't want the tap water for obvious reasons, I have however replaced all the filters a few days ago to get the best of the best for my girls-to-be) and I know manufacturer (iSpring Water Systems) specification is that water pH should come out at 7.4, it came out at 8 which is fine for myself and will just have to use a lot of down, but the EC reading has come out at 0.8, which even as a virgin grower I know is waaaay higher than the majorities. I know that during filtration some ionised minerals are added (calcium, magnesium, sodium & potassium), but this has thrown me off completely as I now have no idea where I'm at with nutrients. My plan was to start the seedlings off with around 0.5-0.6 EC (assuming a base of 0.2) as I am growing in coco, so 0.8 is already higher than that without any nutes added. Should I just treat this as my base? Should I use normal tap water? I really am lost and have no idea how to even find the answer. Any help or general beginners advice would be hugely appreciated. I'm so excited to be joining this wonderful community and can't wait to progress, happy growing!

Hi all muiti strain 600 watt green power bulb terra pro plus 15 l pots terra vega rizatonic cannazime ph’d to 5.8 ( as canna say is best for veg ) long time away from the sport an I’m back so I keep haveing the same issue I think it started with ph issues but I’m hoping some one can help b4 they end up in the bin So never used to ph my water (over 10 years ago) as I’m sure the terra pro plus a buffered to 6.6 but now after speakng to canna they have said earliy veg 5.8 late veg 5.9 early flower 6.0 late flower 6.1 feeding strenth 0.9 first the plant started to yellow out an then it’s been all down hill from there seems like it’s just problem after problem an it’s breaking my soul now I think it’s a calcium deficiency but the plants all round look terrible any advice ice would be really appreciated very new here so unsure on how to add pictures but I have a few to show when I can fuiger our how to post them cheers for reading advice is needed

Ok, the new problem... My PH is a bit low for my feed. So that is going to be adjusted. However, for those who asked in a previous thread what the PH and EC were, well I splashed out and bought myself a crissy prezzie of an EC and PH meter, they arrived today. I have tried el-cheap-o route, splashed out on a couple of middle of the range meters that were about the £35 mark each. Normally about £99 the pair, got then on deal via a trader that I have used several times for substantial purchases and got them both for £69.99. So these are not your £20 grow shop cheap as chips, ok for a grow meters. The PH meter was easy to set up, there is an option to set the alternative end standards of 4.0 and 10.0 on the PH scale, I just went with the Neutral PH 7 standard for now. The EC meter was pretty much same sort of deal, I happened to have bought, quite by accident a month or so back, EC28 buffer... Single button push calibration... Couldn't ask for more. OK now, those people asking what my water EC and PH is. This is a current state that IS GOING TO BE CORRECTED. Feed mix... PH 4.3 EC 1.3 Separate Water (for all uses, including adding more water to the pot when dry between feeds) PH 4.8 (Originally I set the PH to 7 for a baseline, was aiming for PH5 when PH was too high) EC 1.0 The water I used to water and other things like spraying was aimed at being PH 5 as I needed to drop the PH of the water in the pot as it was a bit high, the test paper system I used was pretty good guide and PH had risen to above 7. So now I can make the required changes to the current feed mix, readjust the water back to PH of 7.