Well i got my bta almost 2 months ago. I had it under 4 54w t5s on my 75g. Well 3 weeks ago i upgrade lights to 2 250w 14k bulbs and upgrade to a mp40w. When i but the bta in originally it found a spot and didn't move. Well for some reason he has now been at the middle of the tank and in the direct path of my mp40w and is loving it. Hes now been in the same spot for a week and seems happy. Anyone else have btas that love alot of light and flow?