Discoloration On leafs Please help

[wireman15]

Ok been at this for a while :

Stain BB


1000 w HPS they have been in the flower cycle for about fourthy days

Organic fox farms big bloom and tiger bloom along with fox farms cha chin

PH 5.90 - 6.20

room temp constent 72 water temp 75 - 80


any words of advice will be great .....

[LOC NAR on probation]

Room temp is ok but water temp has to come down to 70 or below. You can freeze a soda bottle and put in rez to bring it down. Buds look great but hard to tell about leaf. nute burn are mostly tips. Maybe lght burn or plant eating old leaves, normal. No little bugs on bottom of they are there ? That is mylar right ? PH is good , worry about water temp. You close to some good bud.