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Found 41 results

  1. Right as promised over in my grow diary here's a post about my Inkbird environment controllers. I have the IHC-200 WiFi humidity controller and the ITC-308 WiFi thermostat, I managed to get these for a steal at 50% off but full retail price these go for ~£100 which makes them significantly more affordable than many other environment controllers on the market. I'm using these devices to control my VPD and I have to say I'm extremely impressed. Both my temps and humidity have been extremely stable. Thanks to these devices not only are my temp and humidity perfectly stable, but both are being kept in the perfect range in relation to eachother, for optimal VPD. So a little bit about how these work. Each controller has a probe sensor and 2 power outlets, one for a device to increase humidity or temp and one for a device to decrease humidity or temp respectively, depending on what you have each controller set to they'll automatically switch between the increase/decrease devices to keep the temperature and humidity within the desired range. For example, for the humidity controller you could have a humidifier and additional extraction or a dehumidifier pugged in (or both with an extension.) When the humidity is too low it will run the humidifier until humidity hits the desired range then it will stop running the humidifier. If humidity starts to creep up it will run the additional extraction / dehumidifier until humidity is back where you want it. The same applies to the thermostat. Each device is only run when it is needed. There are basic versions of these controllers that don't have WiFi and for the budget conscious or non technical people they're potentially a good option, although don't think they'd offer the same level of precision when it comes to controlling your environment. But the WiFi version has an app that can be installed on a smartphone that's absolutely fantastic. The app itself allows you to remotely monitor and control both controllers independently from anywhere you have an internet connection. Which is a great feature in and of itself. However more importantly it has an automation feature that allows you to create rules for each device that can be triggered from the status of the other device or some other external factor. What follows is a short guide as to how I have these devices setup and how I created rules that will trigger and adjust each device as my environment shifts the devices will adapt to compensate, keeping my VPD in the ideal range constantly. Sensor placement. I placed my sensors at canopy level and far enough away from my heater and humidifier so that I'm getting an average reading rather than over indexing on any one reading. Obviously you know your grow space so make sure you're placing your probes in an appropriate location and that you're getting a good reading. The trickiest part of the setup was getting the devices to register on my WiFi but after a couple of attempts we were in business. To be fair the app does a brilliant job of guiding you through the process and it's pretty straightforward. Once they are connected and registered on your network you'll see each device listed in the app. From here you can manually set the desired value for each device. I personally use temperature to drive my humidity and set the temperature value to 24.5c and my temperature range pretty much fluctuates between 24-25c consistently. On the odd occasion I have seen it as high as 27 and as low as 22. But I haven't seen those extremes for weeks now, not since I was initially dialing in the setup. Now everything is dialed in though it's extremely stable indeed. Creating Automation Rules Ok so to create a rule firstly we select the smart option at the bottom of the screen. Next select the automation tab. On my screen you can see all my veg rules in green. Obviously the first time you see this screen it will be empty and rules will be added in the order you create them. To create a rule select the blue "+" icon in the top left. You'll then be presented with a screen that allows you to select what type of trigger condition you want to set. Because I want the devices to balance each other I chose the "when device changes status" option. My temperature like many of you, I'm guessing, tends to be far more stable than my humidity. So I opted to have my temperature value drive my humidity value. So on the next screen we select our thermostat. (ITC-308-WIFI) Here we're are presented with a list of options. I have used the "current temperature" parameter. Each rule I have created is set at 1c increments. I also use the "<" (less than) condition I originally set this to "=" but as soon as the temp shifted by 0.1c the rule would cease to apply so using "less than" at 1c increments covers the entire range of decimals. Select the upper limit of the temp range you want to cover. On the next screen we need to select what we want to happen when those conditions are met. In this instance we want to run our humidity controller so select "run device" Now select the humidity controller (IHC-200-WIFI) Next we want to select what we want the humidity setting to be, so select the "Setting Humidity" option. Use the slider to get in the right range if you want to be really precise you can use the + and - icons to make fine adjustments. Here you'll want to refer to a VPD chart to select a humidity value that's appropriate for the temperature threshold you have selected for this particular rule. The rule we are creating is for flower so I have used the appropriate settings assuming a -1c leaf temp offset, these values will give us a RH of 51% between 24-25c On the last screen you get a summary to review before saving and activating the rule. So for this example we are using <25c as our threshold temp. So to recap what we have said to the app is "if the current temp on our thermostat is <25c then set our humidity to 51%" now where this gets really interesting is that you can stack the rules up so if I set a <26c rule for 53% humidity we have now told the app 2 things: "if the current temp on our thermostat is <26c then set our humidity to 53%, unless the current temperature on our thermostat is <25c then set our humidity to 51%" You can then add additional rules for <24c etc etc and you continue to stack these rules one on top of the other until you cover your entire temp range and a couple of c either side just in case. There's a whole heap of other options I'm yet to explore with this but just this functionality alone for the price is pretty fantastic. Yes there's quite a bit of setup involved but once it's done and your rules are saved you never have to look at it again other than activating or deactivating the rules for the various growth stages. At the moment I only have a complete set of rules for veg setup. By the time I flip I will have created a full set of new rules for optimal flower VPD. You can colour code the rules so you can easily see at a glance which rules are for which stage my and you can activate and deactivate any given rule using a toggle. So when I need to, I can just switch between different rule sets easily and there's no need to recreate rules from scratch all the time. If people find this post useful I might explore some of the other features in the app and make additional posts over time. Keep it green -NezA
  2. So I have set my grow room up and everything is running nicely, temperature is stable and constant at 25c. While doing a dry run before I plant my soaking seeds, I have come to run the humidifier to bring it up to around 65 for seedlings. However I cannot seem to get the room up from 55, I have a decent humidifier it is the levoit lv600hh, I have set the humidity to 70 to bring it up, it's on max mist output. For the size of the grow space this humidifier is and should be more than capable to work as required. Has anybody got any advice, thanks
  3. So I'm about to begin a grow and I'm just currently running the grow room to see how everything is working. The fans I have bought to use as the intake and extraction seem to be quite powerful, and the grow space is the size of a tall fridge. I'm having trouble getting the humidity to rise, I have the temp at currently 25c. Is there any way of reducing fan speed or the amount of air that's being drawn and extracted. As the fans I have do not have any control options . I feel like before the space even has time to adjust its being replaced with new air and the humidity is very low.
  4. Ok, sick of budrot, especially in winter in the U.K., caused by high humidity. I invested in some sensorpush Bluetooth monitors to see a continuous record of temp and the and a ram 10lt dehumidifier and I’ve been experimenting with placement. And recorded changes via sensors. from everyone’s experience where is best to put dehumidifier? in tent? Or outside tent near intake? If in tent is it best in middle of space or near intake etc? just to say temps are fine. Got smscom 4a hybrid doing fans, a lighthouse WiFi plug doing two tube heaters. It’s just the high humidity at this time of year particularly at lights out.
  5. Hey all hope you are doing well, on my first grow and about 6 weeks in now and getting way to high humidity readings in the greenhouse over night. Just wondered if any of you had any cheap ways to control humidity? Obviously there is the option of ventilation, heating and a dehumidifier but some of these options can be pretty costly. Have any of you ever used products such a moisture absorbers? Will an everyday bedroom humidifier work well in a greenhouse?
  6. Hi there ran into some issues maintaining humidity in seedlings grow area. temporarily maintaining humidity with a ziplock bag ofer the pot, but this cant be ideal as the seedling as no fresh air. For young seedlings would you prioritise humidity or air circulation? normal humidtiy without ziplock bag is 40-45% Thanks S
  7. I'm planning 3mx3m space w/ 6x 600's to use end of flower. Air extraction 1080-1350m3/hr (depending on which fan I get) intake 800m3/hr. Inside target climate: 25-30°c RH 65-80% Avg outside climate: -2-10°c RH 60-90% Never used inline, kept running into low humidity this time want inline+humidifier. I played w/ online humidifier size calculator it said I need around 14-20kg/hr=14-20l/hr to keep up with extraction. Long story short seems like this is industrial size and way out my budget so instead wondering anyone knows how to make a humidifier maybe w/ pond foggers/mist makers+centi fan? I'm all ears to any advice, thank you in advance:)
  8. Want to run a humidifier+dehumidifier in my tent where each activates only when needed using inkbird controller, my goal is to maintain RH 75%-85%. Q's: 1. If I were to use humidifier/dehumidifier where would be the best place to install them? Close to intake maybe? 2. Is it pointless to run these when your extracting air 24/7? 3. Is there a way to calculate humidifier size? P.S. I KNOW HIGH RH AND CARBON FILTER DOESN'T MIX PLEASE LEAVE THAT TO ME
  9. Formula I've come across: Maximum amount of water you will ever give your plants(probably flush period) x the amount of plants. Problem is how the heck would could I possibly calculate how much water I'll be giving my plants?
  10. Hi Does anybody use Inkbird products? Im looking on eBay at a Inkbird temp socket....It has 2 sockets on it and wonder if one can be used for a heater and the other be used for extract/cooling Its also the same with the humidity ....I guess plug a humidifier in one socket and a dehumidifier in the other any advise would be great Thanks in advance
  11. Hi Guys First time grower looking for advice please. I’m planning on putting a 120x120x180 loft tent in a loft, the loft has Humidity levels of RH 80-95% depending on the temperature. Now I know the humidity being this high is a problem but would I be right in thinking, that if I intake air from a bedroom below ,with humidity around 50%, directly into the tent, that this would keep RH in the tent at a more suitable level? has anyone else had this issue or does anybody have any solutions? thanks in advance
  12. Greenhouse temps

    From the album Summer 2019

  13. Please move if posted in wrong place Hi everyone. Been reading on here for a while found a lot of helpful information that’s helped me with my first few attempts. Long story short I started growing to help my mum who had terminal cancer with pain relief, fast forward 18 months and I’m now on my 4th grow. I’m struggling to achieve gpw and think this is down to my environment. I have a 1.2m bloomroom loft tent. I have a 6 inch outtake with a rhino filter. Currently using passive intake with a bit of ducting from room below. Running a 600w hps with dimmable omega ballast. X2 oscillating fans, humidifier for veg. 700w oil filled rad for lights off. My fan is a rhino thermostatic but I don’t think the temp control is very reliable. I’ve been using 11l pots with pure canna coco. Using canna range a and b, rhiz, cannazym, boost and pk. Swapped pk for bloombastic on current grow as advised by someone better than me lol. Watering every 2 days up to 2.5L in flower! Don’t seem to be getting the growth I would like in veg and seems to take forever for them to gain size! Now for the questions please! Do I need an intake fan? If so what size? Recommendations on fan controllers for intake outake and heater? Or easiest way to control them all? Would I be better doing 9x6.5l? Less veg time? If so would I put them straight under hps from cutting? A lot more info to share with you guys if you need any to help me! Sorry to ask so many questions on my first post! Thanks in advance
  14. Evening everyone, Sat, chilling wondering something.... What's everyone's thoughts on the best way to control humidity during flowering, without spending loads on a DE-humidifier? What is your preference and why? I have a small £20/30 one it's electric combined with two calcium moisture catchers..... 60-75% humidity still... It's a small grow tent, with two flowering and 3 germinating. (I appreciate its cramped) Left the tent slightly adjar etc, which is how i achieve 60%... Whats the chances of BUD rot as we stand... 50/50?? :/ Thanks
  15. Hi everyone I've been curing now for about three weeks. I've been using the boveda 62%, as I read that was a good humidity to store at. I'm around 65% now, and I must say the stems feel rock hard and the flower seems really really dry. I'm used to more tacky flower, what's everyone's preferred humidity?
  16. Today I got my 3rd week of flower with lemon haze . Everything seems perfect so far but I'm having an issue that as my plants are stretching up my humidity seems to be going up with them . 2 weeks ago though veg and 1st week of flower I had 19 degrees lights out with 40% humidity 25 degrees lights on with 45% humidity . Now I've crept to the point I'm getting 20 degrees lights out 50-60% humid 25 degrees lights on 70-80% humidity Now im aware of a few factors Weather is floating around -1 - 6 degrees the last few weeks. Plants make their own humidity too I'm using separate smscom fan controllers for intake and outtake which let me pick a minimum speed and a temperature I wish to maintain and the controller does the work for me ... Shall I try turning minimum speed up on out take or intake or both? Read on here a couple times dehumidifiers are a no in a groom ? Opinions on this Any other recommendations or tips please Thankyou kind people . Hope all is well
  17. Hi guys just planted quite a few royal queen seeds northern light autos and Barneys farm sweet tooth autos in my lock up. The room is around 10 cubic metres. 2 6” intake fans. 8” hyper phresh silent stealth fan and mountain air carbon filter. 4 600w hps lights 5 litre humidifier whole room milared lights are about 4ft off pots and temps at the pots are 27.5 with lights on and humidity 20-25% Lights off temps are 20.7 and humidity 44% ive tried turning humidifier on full which use 5 litres in about 10 hours and barely makes a difference to humidity according to both hydrometers cant get it to 30% when I wanted over 50% got a 10 litre bucket of water sat in corner of room as well. My question is does humidity make that much of a difference and if so how can I raise it up with the lights on? Im really going to struggle in the summer keeping temperatures down if they’re near 28 now in January I’m guessing they’ll be way over 30 come summertime
  18. Hey 420, I’m about to harvest in roughly 10 days. Ive been given great advice from the guys on here regarding the temps and humidity. I’m going to whole plant hang at 18C 60RH low and slow for 14 days or until stems snap. What I’d like to know is, when drying how do I have the tent set up... 1. Do I have the intake port completely closed off, or the fan just switched off, resulting in the outake fan pulling fresh air in through via intake ducting? 2. I’m expecting the humidity to be really high the first day or so, do I have dehumidifier on to get it down to 60% or will having it on dry it too fast? 3. If the humidity drops lower than 60% during the drying, do I use humidifier in the tent to maintain the 60%RH? 4. With the outake fan turned down to minimum, I guess that will keep air moving, do I also need a small fan pointed away from buds to help circulate air.. or is outtake enough? quite a few questions but if anyone can help out with any of them, that would be great. Thanks!
  19. Hi buds. I'm posting this here as well as on my diary. I've already started with the 18/6 lighting cause the sprouts popped out and added the nutrients. However, I'm having a hard time setting the environment. My main problems are: 1. The 400w HPS bulb is hanging few inches from the top of the tent and I'm still getting a minimum of 28.8 C (in the picture I'd just switched the light on). Too hot :/ 2. RH has gone from 60-70%, which I considered ideal, to 40% with the lights on. Not looking good. 3. Water temperature is also a problem, even with bottles filled with ice the minimum I get is 21 degrees, and just for a couple hours. 4. I removed the air pump because of the noise and ordered a new one that's supposed to arrive on Monday. Not that it worries me too much because roots didn't reach water yet. All in all, I don't expect much from my first grow, as I understand hydroponics requires more experience and I'm a complete newbie. However, I would like to get tips from experienced growers and learn from my mistakes. Cheers buds!
  20. Hullo, First timer here, 1.2x1.2x2m Mars tent with 600w Solis-Tek digi ballast, 6" exhaust, pulling through a f^k off carbon filter. Hand watered coco with Canna nutes. At the moment I'm just getting my bearings and while my Type K thermocouple thingamy has been invaluable during the hot weather (barely managing to keep below 30c during hottest part of day, but the girls are seeming to love it =) ). However I'm thinking I might need to get a handle on the moisture levels in the air as they really start to party hard. So would appreciate a product that will allow me to put sensors where they will do most good, and more importantly allow me to take readings without having to wake them up (ie have the display outside). Not above building some sort of home brew "fabracobbled", GitHub sourced thing, but prob more sensible to start with a working unit that will give me a baseline to be able to move forward from. Don't want IoT stuff, no RGB, simply something that works, every time, without alarms or "features" that won't get used, think Nokia rather than iPhone =) Finally I would like something that will manage to survive at least a couple of seasons, but not having me have to sell the kids. So if you have come across such a thing, please point me in the right direction. Cheers, PS Also I wondered if there was any benefits to other things to bring the moisture down rather than a full on de-humidifier ? (N.B. NOT affiliate links) Bags of magic stuff that pull in moisture (along the same lines, Or if it gets really bad, bite the bullet and get.. Big thanks in advance B
  21. 'sup 420ers, I'm looking for recommendations or advice about humidity monitors/loggers. I've seen all sorts of mega environment controllers available online in the £££-££££ region, but these are well overkill for what i need. I've also got a couple of those little battery powered display cheapo things but don't reckon much to them and they only show the readings on screen. I also know there's the arduino, DIY/programmable approach, but don't think i've got time to get into all that to learn how to do it. So, what i'm looking for is a relatively simple humidity monitor which i would leave in the GR constantly monitoring and recording the data, then periodically, take out and plug into my computer to view the readings. I'm sure there's plenty out there, hoping to spend less than £50, if possible? Has anyone got anything along these lines and can reccommend? Any pointers appreciated, Cheers dudes Wisjam
  22. Oioi I need some advice on keep temp low in tent and humidity high with out spending loads. I've got five dark devil auto on the go but temps are exceeding over 30 degrees and humidity drops when I turn extracter fan on. Any help would be appreciated
  23. Hi everyone just after some opinions and an answer to some questions. First of all what is the ideal temps and humidity when flowering starts? I read somewhere but cant remember where, do the plants take up some of the temp and bring it down? Im struggling to get my tent down below 25 degrees currently started week 2 of veg. Should I transplant into a bigger pot once I go into flowering? I have fabric pots what do you guys think of them? Thanks in advance.
  24. Harvested a plant today and in a bit of a predicament. Took the best part of a year due to several long story issues. Luckily it made it, and I got a fairly good yield. Now I really don't want it to go tits up. Heres the problem. I've been using a grow room I built inside a garage/shed. I'm glad it was finally time to harvest as the outside temps just entered a bit of a cold snap here as we get closer to winter. Online showing my area as 5C outside tonight, but its only 8:30pm. Worried that tonight might drop to freezing outside - so inside the grow room will be too cold at night. I have no room inside my house anywhere to dry them, and certainly nowhere the smell wont be overpowering. Here is a solution I came to for now - as expensive as it may be :- I sectioned the plant out, and hung everything on a few lines of string inside a big cardboard box. I put the box in the grow room, off the floor on two woodblocks. Left the light on and will run it 24/7 for now. Its hanging about 3 - 4 feet above the box, and the box is not directly under it, but beside it. I've then covered the top opening of the box with more cardboard so that it is still as dark as I can make it inside. I've then perforated the side of the box at the bottom with a patch of small holes the size of a pencil. I've then placed a fan about 3 or 4 inches from said holes, allowing a small amount of air to flow into the cardboard box and encourage air circulation. I've also one small greenhouse tube heater left on beside the entrance of the grow room. Don't think it really has much affect. I put a temp/humidity meter inside the box for a few minutes and then opened it up to check out the readings. It seems less than ideal, wavering between 16 and 17C and the humidity is about 55%. Outside the cardboard box, it reads more like 24C. I reckon its a combination of both being in the dark, and the fan air blowing in. I also know direct fan air is bad, but it really is a barely detectable draught when I put my hand in the box. How long do you guys reckon I can get away with this set up before mould sets in ??? My entire first grow was ruined by mold so it terrifies me now. My second grow was a quick auto to tie me over and I managed to avert mould with it. Dried that one in the same box for about 4 weeks, then transferred it to brown bags for another week before jarring and it worked out good - but that was during the summer and the temps in the room were much better lights on or off. I was thinking if they hold out for a week in these conditions, and the smell dies down, I could then transfer the box to my bedroom to finish the drying there ??? Cheers!
  25. Hi There, Been studying how to do an indoor grow for ages saved up a bit of cash and have decided to go for it. So first grow is about to start Bubble Kush Auto seeds arriving tomorrow. So first thing first the room specs. DR60 Secret Jardin tent (small i know but its the only space i got) 1 x P150 PLATINUM LED 2X 2FT Full spectrum fluoros attached vertically in rear corners facing it 1x 4 inch fan and carbon filter with ducting pulling hot air out. 1x six-inch desk top fan for air movement in tent. 1 x exhale co2 bag (i know its not necessary but inquisitiveness got the better of me) Will be growing in soil - start with bio-bizz light with added ecothrive charge , nutrients will be bio grow , bloom etc. Been running tent for 2 days now empty to get the environment right Temps range from 20 - 28 degrees ( high temp is with all lights on and in bloom mode) i think the fluoros are a bit overkill but potentially good for vegging turn them off when switch to bloom. have extraction fan come on for 15 minutes every 15 so could even run it constantly to get temp down. humidity is averaging 56% Any way question with the C02 BAG instead of the exhaust just dumping the warm air out side wasting the co2 was thinking can i recycyle the exhuast back into the inlet thus sealing the room kinda, maybe even put another 4-inch fan on the inlet to move air abit quicker thus cooling it ? DO you think this is the right thing to do to use as much of that c02 as possible ?