Puffdiddy Posted March 7, 2022 Author Share Posted March 7, 2022 @zen-ken I can do that - but how much should I mix up at a time? I have a 500L resi and a waterbut not far away - I have some containers from 20L to 100L - but how would I add 100L of PhD water?? I'm not sure I follow this zen 1 Link to comment Share on other sites More sharing options...
zen-ken Posted March 7, 2022 Share Posted March 7, 2022 Just now, Puffdiddy said: @zen-ken Ref the CO2 Well fuck my hat I should have spotted that... Of course.... That was lucky I'll have a look at some diarys and set up my own that would be great. On another note - light height! I have 2 x 630w Omega Luna pros and wondered at what height they should be now - the girls are taking off - got a whole new set of leaves on every plant in last 24 hours - lights are on the roof at 2.2 and canopy is at 580mm so was thinking should I drop the lights down? They are set at 40% ( should I start a new thread for this?? Utter newb question) don't wanna get spanked by @Owderb again Don't guess......your eyes are terrible light meters.....Use Photone (app) or Shane from Migro has some neat hacks with Lux meters to work out DLI. Obviously an apogee meter from the legend that is professor Bruce Bugby is the order of the day but they are waaaaaaayyy overkill for a home grow imo and the app or lux meter will give you a good enough figure to work with Remember a famous quote when asking questions: 'There are no stupid questions.....only stupid answers' if your not sure on anything....just ask Link to comment Share on other sites More sharing options...
Puffdiddy Posted March 7, 2022 Author Share Posted March 7, 2022 @zen-ken Shit - I haven't factored my tap waters EC My system EC is 1 at the mo - has been very stable - but they have only got going - I get the feeling things are about to take off though... The root growth is last 24hours has been quite amazing too as well as the new growth up top - 1 Link to comment Share on other sites More sharing options...
zen-ken Posted March 7, 2022 Share Posted March 7, 2022 (edited) Just now, Puffdiddy said: @zen-ken I can do that - but how much should I mix up at a time? I have a 500L resi and a waterbut not far away - I have some containers from 20L to 100L - but how would I add 100L of PhD water?? I'm not sure I follow this zen (Continue to question anything as I dont come across very well sometimes) What I was more referring to was making your initial mix for the week. Mix your nutrients and get everything set. before you add it to the system....the key to RDWC is consistency.....No sudden jumps....Maintain a nice status quo. Ph down can just be added for system maintenance gently in a couple of litres of water over half an hour as it has little antagonisms.......PH up/hydro silicon are very different animals and need to be added very carefully as they antagonise and will drop out completely at high PH ranges. Remember...the first few pots are gonna take the hit of any sudden increases of anything you subject the header to Edited March 7, 2022 by zen-ken 1 Link to comment Share on other sites More sharing options...
Puffdiddy Posted March 7, 2022 Author Share Posted March 7, 2022 @zen-ken DLI - got the app What should I be looking for? Does this change with the plants growth stages? Or is it a number I should be trying to maintain - and is that with both brightness of light and height? How on earth does all that work? Jeebs - rabbit hole just got way deeper - going to need a big r boat 1 Link to comment Share on other sites More sharing options...
zen-ken Posted March 7, 2022 Share Posted March 7, 2022 Just now, Puffdiddy said: @zen-ken Shit - I haven't factored my tap waters EC My system EC is 1 at the mo - has been very stable - but they have only got going - I get the feeling things are about to take off though... The root growth is last 24hours has been quite amazing too as well as the new growth up top - Whats the Base EC of the water.....It may pay you to get a water report done so you can factor in the extra calcium and run it through hydrobuddy We don't have much wriggle room for NPK being out of ratio in RDWC Link to comment Share on other sites More sharing options...
Puffdiddy Posted March 7, 2022 Author Share Posted March 7, 2022 @zen-ken Ref the adding - thankfully that's what I've done - I have another 500L ready and sitting pretty much excaly as the system - my plan was to try and get the resi just the same for my swap out on Thursday - incidentally - can I drain the whole system and then clean filters - then re fill? Last time it took an age to fill so I've got a pump now - like a flipping fire engine pump - should fill it in 20 instead of over an hour and a half using gravity from the resi next to the header 1 Link to comment Share on other sites More sharing options...
Puffdiddy Posted March 7, 2022 Author Share Posted March 7, 2022 @zen-ken I'm.goimg.in to check DLI and then I'll check EC out the tap - I'll let you know both in a mo Thanks so much for your time and advice - you have been really really helpful 1 Link to comment Share on other sites More sharing options...
zen-ken Posted March 7, 2022 Share Posted March 7, 2022 (edited) Just now, Puffdiddy said: @zen-ken DLI - got the app What should I be looking for? Does this change with the plants growth stages? Or is it a number I should be trying to maintain - and is that with both brightness of light and height? How on earth does all that work? Jeebs - rabbit hole just got way deeper - going to need a big r boat Daily Light integral Think of it as marbles raining down and the DLI is how many marbles you collect in a day. A usual DLI of around 45 is where I like to be .....PAR/PPFD is an awful way of measuring as it doesn't take into account the amount of hours you have the light on (24/0,18/6,12,12) Obviously we collect more marbles in 24 hrs than we do in 12 so our DLI shows us the true amount of marbles hitting the plant. Rough example: At 18 hrs we are 24inches away......18 x par gives us our DLI The same fixture on 12/12 is gonna have to be a lot closer to get our DLI This is thing that catches a lot of new growers out as the girls stretch like fuck as you have effectively cut the light by a third Edited March 7, 2022 by zen-ken 1 Link to comment Share on other sites More sharing options...
zen-ken Posted March 7, 2022 Share Posted March 7, 2022 Ask way bro. @stu914 @badbillybob @QQ710 Are all very versed (sorry if I left anyone out) and very knowledgable Never worry about asking them anything....they are really great guys and love to help 1 Link to comment Share on other sites More sharing options...
stu914 Posted March 7, 2022 Share Posted March 7, 2022 Just now, zen-ken said: they are really great guys and love to help Awww... You just keep on setting yourself up for it tonight bud.... 1 Link to comment Share on other sites More sharing options...
Puffdiddy Posted March 7, 2022 Author Share Posted March 7, 2022 @zen-ken SYSTEM PH 5.9 Nutes Temp 21 (after chiller plumbed in) EC 1 Air temp 26' Humidity 49 Lights 1500mm away on 40% DLI 17 - 21 - differs widely Tap water EC.4 PH 7.0 Lots to do - given what you said about DLI - I think I'll drop them down to see if that raises it - or maybe just crank them up - what's the pros and cons on that? Is it that it jusy Costs more same result or more to it? 1 Link to comment Share on other sites More sharing options...
Puffdiddy Posted March 7, 2022 Author Share Posted March 7, 2022 @stu914 Was just thinking that Link to comment Share on other sites More sharing options...
Baron von greenback Posted March 7, 2022 Share Posted March 7, 2022 12 minutes ago, Puffdiddy said: @stu914 Was just thinking that Top info guys can i use these tips in my iws system as on my first grow so all info is much helped thanks Link to comment Share on other sites More sharing options...
zen-ken Posted March 7, 2022 Share Posted March 7, 2022 21 minutes ago, Puffdiddy said: @zen-ken SYSTEM PH 5.9 Nutes Temp 21 (after chiller plumbed in) EC 1 Air temp 26' Humidity 49 Lights 1500mm away on 40% DLI 17 - 21 - differs widely Tap water EC.4 PH 7.0 Lots to do - given what you said about DLI - I think I'll drop them down to see if that raises it - or maybe just crank them up - what's the pros and cons on that? Is it that it jusy Costs more same result or more to it? Ph is lovely now. Nutes - drop the chiller to 20c....19C being the absolute ideal trade of between root growth/DO and pathogen restriction. (never go below 15c or root growth just stops dead in its tracks) Never go above 22C EC - looks good ...at 0.4 base water you have 'normal' water so will not need the soft water version....A quick search of your water board could help reveal what levels Ca and Mg are at. You should be good for a week or two at least before knocking it up a touch. Air temp - Lovely....but as your using LED your LST is probably a little lower than that....don't be afraid to push it up a little. Humidity - again not bad 65% at your stage would be better but 50% is not disastrous. Keep the DLI a little lower atm till they get going and then get it up to 40+ whats your lights off temp ? 2 Link to comment Share on other sites More sharing options...
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