I think im about to give up. It seems Ive had problems from the start. I used to keep african cichlids for over 6 years and never has one issue. First thing that happened was my sixline wrasse ended up in my filter, and died. I got another one, and he died within 2 days for no reason. So waited awhile, got a melanurus and a bicolor blenny. Blenny didnt make it, but the melanurus is doing great, and I was enjoying watching him. But now my tank is UGLY, first i had dinos, and I got a uv that seemed to clear those up. Well now its like ive got diatoms all over the sand and rocks, pretty sure the dinos didnt come back because this time its just brown with no bubbles in it. I dont understand why diatoms are coming out now the tank has been running for almost 6 months now. And on top of that the tank seems "dusty" like tons of white dust particles all in the water. I really dont know what to do now, so many problems and ive not even got into coral yet. Thinking of just going back to cichlids.