MrMackey
- 74
- 18
Hi, I’m new on this site but been growing for a fair time and have many successful grows under my belt however I’ve been pulling my hair out for months now and hoping some of you guys can help and this thread can hopefuly get a decent amount of knowledge to help in the future!
the problem(s) once flipped to 12/12 the majority of plants (not all) show classic magnesium deficiency within 1-3weeks most of the time not every time which sometimes is remedied With Epsom salt and or higher calmag doses othertimes the problem just gets worse/stays manageable or transforms into what looks like N toxicity but often ends up looking like multiple deficiencies. The tops of the buds on some plants go deformed as in like a flat head and very small, yet quality stil stays 8/10 no matter how weird the plants get I’ll put up some pictures of both early and later stage problems below.
as much information about the grow as I can think of...
Opticlimate controlled rooms temps are currently 26-27 lights on 20-21 lights off
Rh 55-70% goes from one to the other as the compressor of the ac is on/off
Gavita de 1000w fixtures are set at 850w layed out 1 light over 4 plants every 1.2mx1.2m lights are close to the 9ft ceilings as possible and around 6ft from the plants when flipped and around 3ft give or take 6” once stretched out (often think this is the problem but have had mega yields and quality in same room this year)
Co2 injected from bottle at 800-900ppm (feels wasteful atm)
Not many circulating fans but 80-90% of the plants have a nice gentle leaf movement from the opti climate
Alien easyfeed system in 20l fabric pots 70/30 coco perlite this is a bottom fed system for those who don’t know (there not too common) plants drink about 3-4l per day from 1 flood (bottom 2”or so for1hour) judging by how many plants and how fast a 500l tank is used up
I’ll post my feed schedule but basically they get ph 5.9-6.3 all the way through flower and ec starts at 1.8 (total with water etc) for 1st few weeks and up to around 2.6ec at peak levels then flushed plain water the last 10 days (I’ve tinkered with this on and off everyway possible with the nutes I have to hand chasing deficiencies) I know these ec seem high but every time I go the lower route things seem to go south fast and slower when on the higher ec.
things I think it could be that I’ve tried are cal mag doses I’ve tried 0.2 ec on top of my bg ec which brings it to 0.6 ec before rest ofnutes go in and up to 0.8ec (1.2 total before other nutes)
Epsom salt at similar ec lvls with and without extra calmag
Tried base nutes as low as 1.4 ec total and high as 2.0 (after calmag but before any additives)
Had thrips and fungus gnats at one point thought they were to blame for rid of them completely and yields were better but still not what they was.
things I think about that I’ve not tried
Recently read about toxic gases released from carpet/wood/bare walls
It really looks like these symptoms but not sure why some plants look fine and others turn to shit (same strain from cutting)
over or under watering?
I’ve can’t give no more otherwise they will still have some water 24hours later still in the tray currently the tray empties before it re fills I could give less but when they are healthy and going well they can dry too much it’s only since this issue they r drinking less
the carbon filters have not been changed in 18months of use on the opti climates however I’m getting this problem in a brand new setup aswel
side note, I know everybody will say I must have run off because of salt build up and i agree that’s best when top feeding but I’ve had over 1g per w many many times with this method and when I do flush the odd plant just to check run off reading they are almost always in range not changing much from what goes in.
anyway I’m open to all ideas and I’ll be running an experiment with 6 spare plants starting next week with differnt feed levels and phs to see if i can get any closer and I promise I’ll keep updating until there’s a fix I’m sure I’m not the only one with these problems
the problem(s) once flipped to 12/12 the majority of plants (not all) show classic magnesium deficiency within 1-3weeks most of the time not every time which sometimes is remedied With Epsom salt and or higher calmag doses othertimes the problem just gets worse/stays manageable or transforms into what looks like N toxicity but often ends up looking like multiple deficiencies. The tops of the buds on some plants go deformed as in like a flat head and very small, yet quality stil stays 8/10 no matter how weird the plants get I’ll put up some pictures of both early and later stage problems below.
as much information about the grow as I can think of...
Opticlimate controlled rooms temps are currently 26-27 lights on 20-21 lights off
Rh 55-70% goes from one to the other as the compressor of the ac is on/off
Gavita de 1000w fixtures are set at 850w layed out 1 light over 4 plants every 1.2mx1.2m lights are close to the 9ft ceilings as possible and around 6ft from the plants when flipped and around 3ft give or take 6” once stretched out (often think this is the problem but have had mega yields and quality in same room this year)
Co2 injected from bottle at 800-900ppm (feels wasteful atm)
Not many circulating fans but 80-90% of the plants have a nice gentle leaf movement from the opti climate
Alien easyfeed system in 20l fabric pots 70/30 coco perlite this is a bottom fed system for those who don’t know (there not too common) plants drink about 3-4l per day from 1 flood (bottom 2”or so for1hour) judging by how many plants and how fast a 500l tank is used up
I’ll post my feed schedule but basically they get ph 5.9-6.3 all the way through flower and ec starts at 1.8 (total with water etc) for 1st few weeks and up to around 2.6ec at peak levels then flushed plain water the last 10 days (I’ve tinkered with this on and off everyway possible with the nutes I have to hand chasing deficiencies) I know these ec seem high but every time I go the lower route things seem to go south fast and slower when on the higher ec.
things I think it could be that I’ve tried are cal mag doses I’ve tried 0.2 ec on top of my bg ec which brings it to 0.6 ec before rest ofnutes go in and up to 0.8ec (1.2 total before other nutes)
Epsom salt at similar ec lvls with and without extra calmag
Tried base nutes as low as 1.4 ec total and high as 2.0 (after calmag but before any additives)
Had thrips and fungus gnats at one point thought they were to blame for rid of them completely and yields were better but still not what they was.
things I think about that I’ve not tried
Recently read about toxic gases released from carpet/wood/bare walls
It really looks like these symptoms but not sure why some plants look fine and others turn to shit (same strain from cutting)
over or under watering?
I’ve can’t give no more otherwise they will still have some water 24hours later still in the tray currently the tray empties before it re fills I could give less but when they are healthy and going well they can dry too much it’s only since this issue they r drinking less
the carbon filters have not been changed in 18months of use on the opti climates however I’m getting this problem in a brand new setup aswel
side note, I know everybody will say I must have run off because of salt build up and i agree that’s best when top feeding but I’ve had over 1g per w many many times with this method and when I do flush the odd plant just to check run off reading they are almost always in range not changing much from what goes in.
anyway I’m open to all ideas and I’ll be running an experiment with 6 spare plants starting next week with differnt feed levels and phs to see if i can get any closer and I promise I’ll keep updating until there’s a fix I’m sure I’m not the only one with these problems
