George, you don't think, from my neglegance, falling 12 times from the top of the tank bumbling down over other rock work would'nt kill you? I don't know what the problem is with my water chemistry; but i have ugraded my lights, changed cc to ls, increased turnover to 29x and all trates, trites, amoni, are at O. ph. 8.3 cal. 400 phos. 0