Hello I have had my tank set up for about 6 moths since I have moved and everything was fine up until a few weeks ago. First my numbers
Nitrate: 20 ppm
*The levels were very high at one point over 80ppm, but all the other numbers were the same Ammo and Nitrite, 0. So that's my first quandary.
Second, I have had 2 damsels die(last week) and a clown just yesterday. *The nitrate level was better when they died at like 20-40.
All of the fish that died were doing fine and showed no sign of stress. I come home from work and find them dead. The tank is down to 1 clown now. before I moved I had the tank for over 2 years and never a problem.