Offdarips
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So your leaf temp is 83 -85 or you set your Ac thermostat to that. When we ran the rooms the first time the trees did look hungry and then around week 4 of bloom the leaves started to dry out like the trees were transpiring to quickly. We were running co2 at 1100ppm the entire grow. We went in as high as 2.0 EC on the NM nutes drain to waste. Do you think we should raise our EC and CalMag next time. We are using RO water with 150 ppm CalMag in coco 7 gallon smart pots , our trees max out at 5 ft tall. Lights were 3ft from canopy.
View attachment 498389 View attachment 498390
Looks like nute burn. 2.0ec is almost 1.5x the amount of food you need in coco.
what kindbof ballast n bulb are u utilizing?Don't know if this will help but I'm running a de bulb with ac/de hood with 8ft tall ceiling with no problems so far. I'm about 30" away from my canopy..
Lumatek ballast with digimax bulbwhat kindbof ballast n bulb are u utilizing?
ill bet u my head stash an ushio bulb and gavita pro or phantom de ballast would be much more intense on ur plants. ur not fully lighting that bulb like a gavita 400volt one, guaranyeed.Lumatek ballast with digimax bulb
one things for sure... Its not a deficiency and adding more will probably only compound the problem.
To me it looks like overfert and the plants are unable to transpire due to toxic levels in the rootzone.
More calmag is not the answer. @ 2.0ec N and Ca levels are already excessive to say the least.
Room around 78-82
Leaf 77-85.
The room meters dont swing as fast as the ir laser thermometer I use.
When I overfeed in the co2 room I get stretchy plants, airy buds and that soggy leaf look.
Im @1.5ec base nutes only. Little bit of tap mixed into RO with some silica.
plants must be too close to open bulb setups.your getting way more light to these plants with problems then you are with your vented hood roomI guess that's what's happening to ours. The leaf starts of like deficiencies then turn soggy & burns up, with airy buds.
We have another place that we feed the same nutes with the same EC & room temps, but the only difference is that the hoods are vented and the trees look perfect. Don't know why?
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