G
Guest
Ok... I'm using PBP Bloom and about 5-6 weeks into 12/12.
Ebb & Flow with Ready Grow (coco coir/perlite) in 5 1/2" square pots. I flood once in the dark and 3 times during lights on.
Res 25 gallons... temp around 68
PH 5.8
PPM: 1100ish
Humidity is around 50-60%
Nutes PBP Bloom, Liquid Karma, Hydroplex, Silica Blast and epsom salts 12 tsps.
Lights around 12 - 14 inches off the canopy (air-cooled) Temp at the canopy is 80 degrees.
The Problem
I'm getting leaf curl on my LSD Clones. This is an up curl sorta like a closing taco with the edges getting dry.
I've searched the Grow Faqs... googled it, etc.
I seriously doubt it is heat related... canopy temps have never been above 85 degrees.
I'm thinking it is a magnesium deficiency but would like other opinions.
Steps taken so far... Res change... added epsom salts (I'm out of Cal-Mag... it's on order). I also did a foliar spray at lights out of 1/4 tsp epsom salt in a quart of water.
I first noticed this problem 7 - 10 days ago... was very moderate but is becoming more pronounced.
Also... PBP Pros... how are you supplementing for mag?
Ebb & Flow with Ready Grow (coco coir/perlite) in 5 1/2" square pots. I flood once in the dark and 3 times during lights on.
Res 25 gallons... temp around 68
PH 5.8
PPM: 1100ish
Humidity is around 50-60%
Nutes PBP Bloom, Liquid Karma, Hydroplex, Silica Blast and epsom salts 12 tsps.
Lights around 12 - 14 inches off the canopy (air-cooled) Temp at the canopy is 80 degrees.
The Problem
I'm getting leaf curl on my LSD Clones. This is an up curl sorta like a closing taco with the edges getting dry.
I've searched the Grow Faqs... googled it, etc.
I seriously doubt it is heat related... canopy temps have never been above 85 degrees.
I'm thinking it is a magnesium deficiency but would like other opinions.
Steps taken so far... Res change... added epsom salts (I'm out of Cal-Mag... it's on order). I also did a foliar spray at lights out of 1/4 tsp epsom salt in a quart of water.
I first noticed this problem 7 - 10 days ago... was very moderate but is becoming more pronounced.
Also... PBP Pros... how are you supplementing for mag?