light or heat burn??
- Thread starter immaculus
- Start date
immaculus
Member
Thanks for the response. I'm curious as to how a more fans would help them adjust if it's light stress. Anymore info that can be given would be greatly appreciated.
I have moved the light about 16 inches from the canopy, hoping this will help with either form of stress.
immaculus
Member
They are in ffof soil and have not started nutes at all.
They have only been getting water and have been in this
soil since seed. So my plan of attack would be? Cal mag
plus or Epsom salts?
Bublonichronic
Well-Known Member
Pick up a nice base nute and feed ur plant...
Sunbiz1
Well-Known Member
Were the leaves discolored in this fashion prior to switching bulbs?.
And for how long have these plants been in the same pre-fertilized FF blend?.
I think you have both light burn and a mineral deficiency as previously mentioned.
immaculus
Member
There was no sign off problems under mh lighting. The
symptoms began about 5 days after switching to hps.
They have been in the ffof for about 4 weeks from seed.
I moved the light about 24" from the canopy and foliar
sprayed .5 tsp of Epsom salt mixed in a quart of water.
Sunbiz1
Well-Known Member
The standard distance on an HPS is approximately 18" from canopy, so sounds like some light burn occurred even after you moved them up to 16"...as per your previous post.
It's that veining on the leaves which still has me baffled, looks just like a mineral deficiency...yet FFOF is a good blend. They recommend feeding in it after a month, but the nutes in that stuff can last almost an entire grow cycle.
"Composted forest humus, sphagnum peat moss, Pacific Northwest sea-going fish, crab meal, shrimp meal, earthworm castings, vermicultural compost (bedding material and livestock manure), sandy loam, perlite, fossilized bat guano, granite dust, Norwegian kelp meal and oyster shell (for pH adjustment)."
As you know, that's what's in it...so I'm hesitant to diagnose a cal/mag issue.
