Hey everyone. I'm having a bit of a time putting my finger on whats ailing my plants. They all have similar problems. I've narrowed it down to not enough feed, calmag deficiency or too much of the wrong feed. I'm doubtful it's nutirent burn but I've been wrong before. Many times. All 4 plants are clones from my outdoor crop this year. They were taken in flower, rooted and then revegged. I'm starting to see some yellowing on the lower older leaves and some rust spots showing up on the surface of the leaves. Also seeing a lot of purple stems which I haven't encountered on this strain before. Here's more info on the environment and fertilizer.
Medium: MG PGM5 (always used ProMix HP but local nursery only had this in stock) it has a starter charge of fertilizer (.04-.07-.0
. Its high porosity with lots of perlite, peat based.
Pot size: 2.5Gal nursery pots
Nutirents: Root Farm Part 1 and 2 (bloom). Part 1 is 4-0-0 including calcium, magnesium, etc. Part 2 is 1-5-7. Big Bud(weeks 2-4 flower) and Bud Candy (weeks 4-6). Currently giving half strength, 5ml per 1 gallon of water for both parts.
Water: Good old tap water. PH is 6.8. Sits for 24 hours with an air stone before mixing in nutirents.
PH run off is 6.2 on all 4 plants.
Plants are currently about 30ish days old in veg.
They're under a 400W Metal halide. 20" from the canopy.
Lights off temperature is 17C, lights on is 26C at it's hottest. 34% RH.
I was thinking it was a nitrogen deficiency but I have a fair amount of dark green foliage on the plants so I'm almost certain it's not that. They haven't really slowed down too much in terms of growth. Any advice is greatly appreciated.
Medium: MG PGM5 (always used ProMix HP but local nursery only had this in stock) it has a starter charge of fertilizer (.04-.07-.0
. Its high porosity with lots of perlite, peat based. Pot size: 2.5Gal nursery pots
Nutirents: Root Farm Part 1 and 2 (bloom). Part 1 is 4-0-0 including calcium, magnesium, etc. Part 2 is 1-5-7. Big Bud(weeks 2-4 flower) and Bud Candy (weeks 4-6). Currently giving half strength, 5ml per 1 gallon of water for both parts.
Water: Good old tap water. PH is 6.8. Sits for 24 hours with an air stone before mixing in nutirents.
PH run off is 6.2 on all 4 plants.
Plants are currently about 30ish days old in veg.
They're under a 400W Metal halide. 20" from the canopy.
Lights off temperature is 17C, lights on is 26C at it's hottest. 34% RH.
I was thinking it was a nitrogen deficiency but I have a fair amount of dark green foliage on the plants so I'm almost certain it's not that. They haven't really slowed down too much in terms of growth. Any advice is greatly appreciated.
