thanks man, though the 150 with the severums drives me crazy, one moment I pick all the off colored gravel out then do a vac and find more.... also the dark tank is a 75 black ghost tank, he is 13 in and got to the cranky point with bottem dwellers and fought with big fish in my other tanks.. he would hand feed and come out in lights untill I put him in 75, didnt have a light for tank at the time, took a week but I ordered one and by then he was used to dark, i keep trying the light back on tank but it stresses him out bad now