A few months ago, i moved my corals and rocks from a 30g tank to a 40g breeder because my sps were outgrowing the 30g...i reused as much water as possibly, but that ended up not being more than 20g...i used all new live sand, 60lbs of caribsea fiji pink...in the end, my tank crashed and it has been a slow recovery process...i lost 95percent of my sps corals and had recession on my chalices and acans. could the crash be blamed on the new sand or was it something else? I should say that during the overnight period when all of my corals and rocks were in buckets and a cooler, the pump that was on the side of the coller fell off and blew staright onto my hawkins, blowing the tissue off and i had 2 fish die in the cooler overnight (a juv. harlequin tusk and a small anthias). thanks.
