hey bro, could you take a look at mt most resent photo album dated 3-26-11 and check out my Tangerine Dreams. i think they are experiencing heat stress but im not sure. they sure are droopy. the rest seem to be doin fine. i just changed water and bumped the ppms of nutes to 500 not including ppms in tap water... temp at lid is at 80f, tent temp is 73f and water temp is 72f...ive added kelp and biobizz alg-a-mic hoping that would spruce her/them up but nodda...they both have new growth...i also just got some hygrozyme(useful enzymes) im gunna add a lil to TD#1 see if that will help her out...ill give her a few days...ph is at 5.7... i have a fan blowing just above both TD's so its not sitting stagnant cooking in the light...i have the air intake going into the center of the buckets which is really helping keep the water temp below 75f...thats why you see the metallic boards in middle. im just hoping you might have an idea of what my issue is... thanx bro