Dark Brown/yellow/lime green spots only on fan leaves

i grow in a 5 gallon bubble bucket. i have 2 white berry plants, first WB plant is 5weeks old(first week into flowering) second is 4 weeks old still vegging. the first WB plant is being flowered under a 400 watt hps light. the other is vegging under flouros.

i left for 3 days and i come back to see dark brown,light green, yellow spots throughout the middle/lower part of my plant. this also only seems to be happening to the fan leaves

i have a 4'' sunleaves inline fan as an exhaust fan, and a 8in oscilating fan inside. blowing air around.

to be honest i dont' have a ppm meter, but i measured out 5 teaspons for about 4 gallons of water, i'm using ionic bloom formula, 2,2,6 i think(i'm not near my grow room)

average temp in room is about 68-72 degrees F water temp is around 65degrees F
my ph was around 6.1-6.3



i'm pretty sure this is a ph problem but i wanted to get some different opinions. i already changed the ph back to 5.7 it was at 6.1 -6.3

it look like a deficiency or maybe bugs.

looks like ph... get a ph checker... you never now for sure thats why you track growth

yea when i got back my ph was around 6.1-6.3

i changed it back to 5.7

Could the water temp have droped below 65 while you were gone?????It looks like a def. if the temp gets very much lower than it is, it can cause a nute lock out....

autotek500 said:

Could the water temp have droped below 65 while you were gone?????It looks like a def. if the temp gets very much lower than it is, it can cause a nute lock out....

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this is probably a problem. i don't have a heater so at night the temps will probably reduce the water temp to below 65

i'll have to get on that asap

I think that's your problem Bro ........low temps causing nute lock out.........you can get a cheap aquarium heater and adjust temp to keep it from droping below 65.....

it looks to me like a mg or ca def. Temp could cause it. I say those because it is spotting started at ends worked back. Pictur 5 shows it between veins and working back. Keep your water warm and see if that helps. If it does not you may need to use calmag or foliar feed. Those leaves will not get better just make sure they dont get worse and really watch your new growth to see if it continues. Good luck

i went out and bought aquariam heaters today. i'll report back in a couple days to see if it helps

aare you saying that those leavees won't become green again? they are just dead forever. cause that really sucks