Yes, I am fully suspecting it not to recover, I'm just concerned it might spread to the other fish, whatever it is. Hopefully it will not 🤞I've had fish randomly die before but they don't usually have this much energy beforehand 😅
I've kept fish for 23 years and grew up with my parents having fish but I've never seen this before. One of my harlequin rasbora suddenly, over night with no warning, started swimming erratically and in circles, upsidedown. It's lost a lot of colour and seems to have a cut on its dorsal fin and...