So what causes a fish to die with its mouth wide open and no other symptoms?
Parameters are good
Ammonia:0
Nitrite:0
Nitrate:20
Ph: 8.0
Water flow is good, I have 2 canister filters one of which points near the surface.
Did a 25% water change yesterday after I found the first dead fish. Found another one today. No marks, no sign of disease. 2 other fish are acting slightly odd. They are not as active as normal but have no other signs of a problems.
The tank is an 80 gallon mbuna tank. It's been set up for a while nothing new has gone in the tank for 4 weeks.
Parameters are good
Ammonia:0
Nitrite:0
Nitrate:20
Ph: 8.0
Water flow is good, I have 2 canister filters one of which points near the surface.
Did a 25% water change yesterday after I found the first dead fish. Found another one today. No marks, no sign of disease. 2 other fish are acting slightly odd. They are not as active as normal but have no other signs of a problems.
The tank is an 80 gallon mbuna tank. It's been set up for a while nothing new has gone in the tank for 4 weeks.