The hex tank is smelling like a sewer this morning very strange indeed? The only thing differant i have performed on the tank was a stripdown of the external filter yesterday. Which is only used for mechanical and chemical filtration only. It is stripped regular and cleaned to stop it going biological! I removed all the carbon yesterday to run a week or so without for a change. This would explain the sudden smell maybe? But why? what is causing this stench. Ammonia nitrite and nitrate are undetectable ph is 8.4 sg 1.025 temp 79. All fish occupants are intact and accounted for. Could a snail have died and caused this? And if this is the case why has it not affected my parameters? There has been a slight increase in skimmate which would also point towards a dead animal/invert?
Any idea's.........
Any idea's.........