I noticed a small white string-like thing on the dorsal fin of one of my rummy nose tetras the other day. Today I checked, and it was still there. Upon closer inspection, he looked to have one on his pectral fin. I netted him out, and put him in a cup for pictures. He did a death roll type of manuever in the cup, and did not look to good.
Any idea what this is? Is it contagious? What is the suggested treatment? Should I treat the whole tank he was in? I can't see anything on the other fish as of now.
Any help is appreciated.
Any idea what this is? Is it contagious? What is the suggested treatment? Should I treat the whole tank he was in? I can't see anything on the other fish as of now.
Any help is appreciated.