i set up my 75g fowlr friday night, after it was running for about 4 hours i started testing my tank for it's levels. Then again at noon on saturday. everything was still in range so i went to the LFS and bought 2 blue damsels and a Emerald crab and a few more pounds of LR. so far they are doing well, the lvls in the tank are still holding. I did do a 20 gallon water change today, just to test out my salt mixing. i wanted to try it with cheap fish in there and see if i could still keep the salinity right. like i said before everything seems to be doing well. I am also started to get little critters or something growing on the first batch of lave rock that i put in. the girl i talked to were i got my LR from said that if i was lucky enough i would clone there tank by adding their LR to my tank. I just don't feel that 40 pounds of LR would clone their tank. does anyone know of what she is talking about.