heat stress? or?

[hidra]

-indoor or outdoor: indoor
-soil, soilless, or hydroponic : regular potting soil
-Soil pH: 6-7
-Water source : tap water with phosphoric acid added to lower the ph
-Water pH : 6-7
-Age of plant : 1 month
-Type of fertilizer : 1/4 strengh of atami b'cuzz grow added twice...1 week interval
-Lighting source and distance from plant : 6 CFL, 6 inch from plant
-Temperature (both day and night if you are running a dark period) : 85-90ish during the day, 75ish at night..
-Lighting schedule : 18/6
-Type of ventilation your room has: I fan blowing cool air inside, hot air escaping from top...


im wondering what this is...
only 1 of the 4 plants is doing this

any idea?

thank you

[stinkyattic]

Heat stress indeed. Let me guess that one was closest to the heat source?

[hidra]

not by much....

but maybe he wasnt receiving proper ventilation since he was the one in the corner..

thank you stinky:)