Hey,
I've noticed in the last couple of days that 1 of my Molly fish is always haveing it's head at top of the water.
From my research, it could be lack of oxygen? But surely all the fish's would be doing it?
My filter is for 100-200L tank and my tank is only 40L, so don't have an air stone because thought my filter would be enough.
I've noticed in the last couple of days that 1 of my Molly fish is always haveing it's head at top of the water.
From my research, it could be lack of oxygen? But surely all the fish's would be doing it?
My filter is for 100-200L tank and my tank is only 40L, so don't have an air stone because thought my filter would be enough.