I've been keeping danios nearly 10 years and I've never seen anything like this. One of my pearls has got a big bloody looking bruise/welt on the wrist of his tail. It's swollen and the scales are raised around the edges of the sore spot. He's having a little trouble swimming and his tail kinda droops down when he stops. He's still eating and trying to keep up with the other fish but he seems slower today. I don't think he'll last much longer if he doesn't start getting better right away. Is this a possible symptom of some kind of disease? or has he been attacked or had an unfortunate scrape? He's in with a 5 zebra danios and 3 other pearl danios and three Siamese algae eaters. My tank is well looked after with regular water changes and testing. I've attached some pictures of the fish in question. APOLOGIES for the bad quality of the photos it's the best I could do. Thanks in advance for any insight you can give
I've been keeping fish for about 10 years so I like to think that I know what I'm doing but I've encountered something I've never seen before so I wanted to make a post about it (not this post) At the moment I'm keeping danios (they're my favorite) but in the past I've kept rosy barbs, Odessa barbs, siamese algae eaters, chinese algae eaters, cory doras, danios, goldfish and probably more I can't think of right now. I look forward to doing some reading here. Thanks!