I am so sick of cyano. I have new bulbs,new filters for r.o. system, new gfo in the reactor,20% water changes every 2 weeks, fish are starving to death and I run the lights 6 hours a day. I am not showing any phosphates and I know the cyano can use it up before the test kit can detect it. I have put chemi clean in the tank just to get rid of it but any other suggestions would be great.