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Slow growth in my DWC tub
- Thread starter black_thumb
- Start date
black_thumb
Member
man im beat. Okay everyone i did away with the old setup. so new tub with 3 1/2" cups with GH micro and bloom lucas @ 300 ppm 0.5 and ph to 5.7 water level is set 1" below cups. no chiller right now.
Did i do it right this time?
last pic are my mother plants in 5 gallon coco buckets
Did i do it right this time?
last pic are my mother plants in 5 gallon coco buckets
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black_thumb
Member
Whats up with the edit ,Green Cracks good but
my jm420 what BIG NUGS you have.
these are my 13 chronics vegging under 3 600 hps lights in coco bags. flipping to 12/12 friday.
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What are you using to root your cuttings man? those look like rootriot cubes or something, you do nt want any organic shit in the netpots bro, just thought id mention that, a 1" RockWool Prop cube & Hydroton, I dont even bother with the RW anymore, just straight Hydroton if doing DWC.
Another couple of helpful points i wanna make is i think your trying to encourage root growth in some of the wrong ways. Your water Temps could be a little higher to help here, 72f-75f would help, if your gonna run H2O2 you could go into the low 80's with no problems whatsoever, as long as it wasnt for half the grow you'd be fine, also things like raising lights & using a root stimulator like rhizotonic may help. Trying to get a plant encouraged to shoot masses of roots aint being helped by low solution temps. Its surprising what raising the light will do, but with that comes stretch, a downfall of doing that really, but it works, if only for a few days. Just remember to keep your feeder roots dangling in the solution itself, keep water level as high as possible, this will encourage a finer thicker root mass & less Cords or rats tails which the Air-Gap tends to produce, the finer rice noodle like root mass is what you want & the bigger the Airgap the more Cording you will get! So in that respect the airgap matters, i keep anything from 5mm to 25mm, when i top-up(solution) i just make sure the bubbles are just slightly catching the bottom of the nets, 5mm below approx, that level soon drops anyway, but i rarely let it drop more than a few inches max, i like to keep my Res topped up, imo this helps to keep a more stable solution & less EC & PH drift influences, which has to minimise any possible added stresses the plants may endure.
Stick to the Hydroton &/or Rockwool, nothing else for your media. Your rig is virtually identicle to mine in a way, been doing tote's for quite a few years now & love em. Once you master this man, you'll be happy & you'll know it was worth persevering with.
Nutes: Mate try & go with a one part nute line like Ionic, you cant fail with the stuff & it likes working with H2O2 ive found, very rapid healthy growth, perfect. Lucas is just gonna complicate shit & Ionic takes all the tec bullshit out of it & to be fair its a fantastic line, Have you seen any of Heath Robinson's grows, he uses it. I think that would help your case bro tbh & really help to simplify the grow, untill you nail things down. Whatever you choose G'Luck to you!
This is a shot of my current ScrOG Cab 1m2, DWC Tote!.
(Edit)- Your tank Rig doesnt look anywhere near light proof either man, really it needs to be 100% light proof or as near as possible to. Just an observation, i can see a few places what look dodgey, cover with Plastic/Mylar etc etc, & get rid of Rootriot prop cubes, Organic with hydro, im not keep on hydro organic when it comes to mediums at all, especially not in DWC i dont think they mix well myself, it one or the other, not both, it aint gonna help at all imo, Use Rockwool 1" propagation cubes or similar. If ya need any further help etc just give us a shout matey. Could always go with the coco, looks like your good with that stuff, Nice work there!
just my £100 worth
Another couple of helpful points i wanna make is i think your trying to encourage root growth in some of the wrong ways. Your water Temps could be a little higher to help here, 72f-75f would help, if your gonna run H2O2 you could go into the low 80's with no problems whatsoever, as long as it wasnt for half the grow you'd be fine, also things like raising lights & using a root stimulator like rhizotonic may help. Trying to get a plant encouraged to shoot masses of roots aint being helped by low solution temps. Its surprising what raising the light will do, but with that comes stretch, a downfall of doing that really, but it works, if only for a few days. Just remember to keep your feeder roots dangling in the solution itself, keep water level as high as possible, this will encourage a finer thicker root mass & less Cords or rats tails which the Air-Gap tends to produce, the finer rice noodle like root mass is what you want & the bigger the Airgap the more Cording you will get! So in that respect the airgap matters, i keep anything from 5mm to 25mm, when i top-up(solution) i just make sure the bubbles are just slightly catching the bottom of the nets, 5mm below approx, that level soon drops anyway, but i rarely let it drop more than a few inches max, i like to keep my Res topped up, imo this helps to keep a more stable solution & less EC & PH drift influences, which has to minimise any possible added stresses the plants may endure.
Stick to the Hydroton &/or Rockwool, nothing else for your media. Your rig is virtually identicle to mine in a way, been doing tote's for quite a few years now & love em. Once you master this man, you'll be happy & you'll know it was worth persevering with.
Nutes: Mate try & go with a one part nute line like Ionic, you cant fail with the stuff & it likes working with H2O2 ive found, very rapid healthy growth, perfect. Lucas is just gonna complicate shit & Ionic takes all the tec bullshit out of it & to be fair its a fantastic line, Have you seen any of Heath Robinson's grows, he uses it. I think that would help your case bro tbh & really help to simplify the grow, untill you nail things down. Whatever you choose G'Luck to you!
This is a shot of my current ScrOG Cab 1m2, DWC Tote!.
(Edit)- Your tank Rig doesnt look anywhere near light proof either man, really it needs to be 100% light proof or as near as possible to. Just an observation, i can see a few places what look dodgey, cover with Plastic/Mylar etc etc, & get rid of Rootriot prop cubes, Organic with hydro, im not keep on hydro organic when it comes to mediums at all, especially not in DWC i dont think they mix well myself, it one or the other, not both, it aint gonna help at all imo, Use Rockwool 1" propagation cubes or similar. If ya need any further help etc just give us a shout matey. Could always go with the coco, looks like your good with that stuff, Nice work there!
just my £100 worthLooks good from here on the set up.
How saturated was the rooting media when you moved them?
How saturated is it now?
Good luck.
How saturated was the rooting media when you moved them?
How saturated is it now?
Good luck.
black_thumb
Member
it was saturated a good bit. now it seems to be drying out. but now my plants are starting to show alot of nute defs.
Are they wilting?
There will be time between the repotting and the roots regrowing. Keep a close watch on them. This is when some systems rely on top watering/drip to get them established into the DWC.
I wouldn't worry too much about yellowing right now, provided the roots develop out the bottom of the net pots over the next few days.
If you want, you can try to directly feed the leaves by misting a dilute nute solution onto them.
There will be time between the repotting and the roots regrowing. Keep a close watch on them. This is when some systems rely on top watering/drip to get them established into the DWC.
I wouldn't worry too much about yellowing right now, provided the roots develop out the bottom of the net pots over the next few days.
If you want, you can try to directly feed the leaves by misting a dilute nute solution onto them.
black_thumb
Member
no there not wilting. im using oasis to root maybe this is my problem for dwc but they work great for coco.
Oasis=the stuff they use for flower arranging?!!, there is you issue bro, Oasis soaks up a heck of alot of water as far as i know,
If i were you id use only hydroton or similar with RW, why use something that nobody uses for the purpose? ie- for DWC?
If i were you id use only hydroton or similar with RW, why use something that nobody uses for the purpose? ie- for DWC?
(Edit wrong thread)
My dollar would be on the rooting media being too saturated. You cant use Oasis in DWC, it absorbs too much water, by far, its a root drown imo(getting none to little O2), saturation, the OP even says so in a previous post, his medium was saturated, cant be good & imo is the cause! 1" Rockwool cubes the OP wants or dont bother at all like me & just use Hydroton in your netpots, i recommend 1" RW prop cubes & Hydroton as a media in DWC for novices. G'Luck!
My dollar would be on the rooting media being too saturated. You cant use Oasis in DWC, it absorbs too much water, by far, its a root drown imo(getting none to little O2), saturation, the OP even says so in a previous post, his medium was saturated, cant be good & imo is the cause! 1" Rockwool cubes the OP wants or dont bother at all like me & just use Hydroton in your netpots, i recommend 1" RW prop cubes & Hydroton as a media in DWC for novices. G'Luck!
Did this ever turn around?
BeaverHuntr
Member
Add some root grow enhancer most of the local hydro shops sell it.
On the whole water temp issue, a lot of the commercial growers in B.C. aim for 60f +/- 2 (58-62) degrees when growing in a sealed room environment.
This suggestion that there is a broad consensus that 65 is the minimum temp for a rez is simply not true. There are a large number of growers who aim lower and achieve large harvests while doing so.
As with all things, YMMV.
Point is, I would hate for someone to come across this thread while searching about water temps and chillers and believe he has stumbled upon a rule of hydro growing that is carved in stone, handed down from on high, as that is certainly not the case.
This suggestion that there is a broad consensus that 65 is the minimum temp for a rez is simply not true. There are a large number of growers who aim lower and achieve large harvests while doing so.
As with all things, YMMV.
Point is, I would hate for someone to come across this thread while searching about water temps and chillers and believe he has stumbled upon a rule of hydro growing that is carved in stone, handed down from on high, as that is certainly not the case.
