This morning I found one of the guppies in my main tank lethargic and not reacting to anything. On a closer look he looked extremly thin and his gills are redish. He ate last night so I'm not sure why he's looking like he's been starved for weeeks. He was always the smallest of the gang and last night was happly swiming with the others. He doesn't have any of the symptoms my guppy with worms has, so I don't think it's the same problem.
Gave him some food, he ate a bit, but is the gills that worry me. The water parameters are great 0-0-5 (I'm due for a WC today) and
pH as usual 7.2 so I doubt it's a water issue.
The other fish are playing around the tank, showing no sign of any problem. With so little symptoms is hard to determine what's wrong since so far it looks like it can be anything.
These guppies are so fun to watch but they seem to have such low immunity.
