13-15 live molly fry in the main tank.
Don’t know what killed the molly; all readings are fine – nitrite 0, and nitrates about 5 or so.
The main male molly has rediscovered his interest in the female, now that she’s hatched her latest brood. It’s interesting – his head has gone very yellow, all of a sudden. Maybe it’s an indication of his sexual activity; who knows.
We played with the airstones and under gravel filter today. One side has basically stopped blowing bubbles. James thinks the airstones got a bit stuffed. He also took the motor apart and decided it was getting pretty worn out. He’s changed it so that both chambers of the airpump are being used. As a result, it’s now blowing an amazing amount of bubbles, which I guess is a good thing; get the UGF going, anyway.
He was just lying on the bottom, not really moving very much. He did move when I tried (gently) to catch him in the net, to see if I could see anything physically wrong… and then he went back to being listless.
He died this afternoon.
I wonder if it was thanks to whatever killed the tetra? He certainly didn’t look the same as the tetra had. His belly may have been distended – although it wasn’t dropsy – and there may have been something wrong with an eye… although this could also just me being paranoid.
I’m very sad. Ammonia and pH are fine.