gills

Is this some kind of worm or just gills in my senegal? he is about 2 inch long & have some red stuff in his gills , help me to understand, its my 1st time keeping bichir

Hey guys. There is a problem with one of the small feeder goldfish I rescued off craigslist last week. I will note that the rest died from stress and the ammonia in transport. (Long story, originally there were 5 common goldfish and 2 rosy reds! If you haven't seen my other post they were in...