I have had my acans in the sand for about 7 months or so now. Within that time period they have barely grown at all. All parameters are great. In fact everything but the acans seem to be growing great. I moved them up today to about mid tank. Im running two 400w halides and two t5s what do you guys think is this too much light for them or will they be okay? also my lights are mounted about a foot above my water dunno if that makes any differnce??? Any imput is valued thank you