No good news from my side:
Within less than 20 hours, about half the fish got visibly sick!
What looks like a heavy fungus infestation all over the fish’s bodies appeared rather quick: After not seeing any sik fish yesterday evening, when I came home today, I found two fish dead and five very close to death. All this seven fish looked like wearing a white fur coat.
Now, after ‘catching’ the nearly-deads (which I killed in cooking water), only few fish are still visible – one of them also showing a fungi area. I tried to catch this one, too, but couldn’t. And I think, it’s not necessary anyway because all fish will be infected already and the ones showing no sickness now, hopefully will stay fine…
What I don’t understand is, why the sickness breaks out so late. I meen: No losses in my retailers tanks and no losses in my tank during the first days after arrival.
Unfortunately, I haven’t put the fish into a quarantine tank when I got them. Now, in a fully planted tank together with young Sph. osphromenoides, I’m not quite sure how to treat them.
I’m not very used to wild-caught fish and I’m absolutely not used to fish sicknesses. So I’m rather shocked now, having lost so many valuable fish.
Tommorow, I will try to take a picture of the remaining sick fish. (Unfortunately, I haven’t thought of taking pictures when I catched the half-deads…). But I guess someone here will be able to tell me what sickness that is and what I shall do. As far as I know, salt (NaCl) could work here? But how much? I’ve read of about 5g per litre? And where shall I apply the salt? In the regular tank? Or shall I transfer all (visibly sick) fish to a treatment tank?
Any helpful advice is welcome!
Michael