Heseemed to have red splodges on his upper underside. This afternoon I noticed the remaining black widow tetra seemed to be covered in something like velvet… I’ve caught him and put him in the qt. In the process I moved the cloaches’ rock and found the last one – baby cloach – dead. I don’t know how long he has been dead, can only be a couple of days – I had assumed he was just sulking in the hole in the cave. When I fished him out, I disturbed a lot of white gunk off his body; once more, whether this is what killed him or it accrued post mortem, I don’t know.

There are four mollies and one SAE left in the main tank, and three molly babies plus the tetra in the qt.