We have 2 black moors in a 135L tank. We've run out of chemicals to test water today, but we've never had an issue with ammonia, nitrite or nitrate.
We're going away for a week in an hour.
I did a water change this morning, and now one of the fish is sitting on the bottom of the tank, barely moving with his fins clamped. Bitter experience tells me this isn't likely to end well. If he dies while we're away, what will happen to the other guy? Will having a dead fish in the water for up to a week affect the quality badly?
Hopefully it's just something simple that a couple of days' fasting will solve, but what if it isn't?
Fuck fuck fuck!