They are flowering right now? How often are you wayfaring? Hows your air exchange? Those temps are a little high if your flowering its not too bad but still high unless your running co2 I would be around 76 for flower and aluminum foil!? With a 1000!? You could be burning the plant with hot spots you really shouldn't use foil if u insist on something just paint the walls glossy white... any nutes hows the leaves looking??