Quarantine

2 fish now in quarantine - Fenrir and Angraboda. 1 fish still in the tank - Thor.
Thor still looks OK, but is now on his own.

Fenrir was in a really bad way, and I didn't expect him to last the night. He looked almost dead this morning, floating on his side, but still breathing, and I could see that Angroboda was starting to go downhill fast too, with signs of infection.

Took Fenrir out of the tank water (treated with anti-bacterial medicine) and into quarantine in water treated with the traditional sick fish remedy "methylene blue". He is able to right himself in the water - although he still spends time on his side, and may be fairly exhausted. He is also feeding, from the bottom as well as the top of the water.

Angraboda is in a worse state. I'm trying the same remedy, although initially he was in the anti-bacced tank water, which has now been changed to just water with methylene blue. He's quarantined from the other fish and is still breathing but has taken to lying upside down.