Can anyone tell me what is wrong with my plants?

[mikeguynz]

Anyone got any idea what is wrong with my plants.
Just changed from compact CFL to 300W MH
This problem also seemed to occur with the last MH I had in here
Temp is around 80.6 humidity 44-50%

11.5 f (l) x 4.5 (w) x 8.5 (h) is the dimensions of room
Have 347 CFM 6 Inch outgoing fan thru carbon filter and muffler
Incoming 4 inch 177 cfm nothing connected to it

Multiple fans in the garden, clip fan and oscillating 16 inch

Any help is truly appreciated

Thanks in advance

 

[Weaselcracker]

Yes. The cupping of the leaves is from heat stress- it is probably hotter in those areas than the temp you meantioned. So try a bit more distance- also maybe more air circulation from the movement (desk) fan(s). Good luck

 

[mikeguynz]

Yes. The cupping of the leaves is from heat stress- it is probably hotter in those areas than the temp you meantioned. So try a bit more distance- also maybe more air circulation from the movement (desk) fan(s). Good luck

Yah im wondering if the reflector had something to do with it

It was basically a mirror, reflective steal
Its only 300w

Removed it let them sleep for 6 hrs and put the CFL back everything is back to normal

 

[Weaselcracker]

Usually I move the lights higher by an inch or two and that solves it. And I always keep a fan blowing air around between the bulb and the plants.

 

[mikeguynz]

Usually I move the lights higher by an inch or two and that solves it. And I always keep a fan blowing air around between the bulb and the plants.

Thanks for the reply have a small fan pointing right at the bulb

it was about 6.5 feet in the air

Maybe my carbon filter should be higher too its only 7 out of 8.5 feet high

 

[sshamish]

I vent my fresh air directly onto the lamp in order to reduce heat before it gets a chance to touch the plants


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