A few weeks ago, we had lost an anenome due to poor lighting/flow. Lesson learned. We fixed the problems there, but since then the cycle has never been able to re-establish itself, and our tank fills with toxins within 2 days. After some research, I have concluded that this is probably due to toxins released by the dieing anenome. This morning we lost a tang, and I really need to do something. I am thinking that it may be best to start the whole process all over, removing all livestock, full drain, the works, and re-establishing the tank all over again as if it were new, after finding we made quite a few mistakes due to a poor book and questionable advice from our LFS (the only two sources of info we had to start a tank at the time). Any advice/comments would be GREATLY appreciated.