I'm not new to this, but yesterday one of my glofish died and he had bright red gills; I really don't know the cause but the thing that is worrying me the most is that my other glofish, Gem, is having the same indicators that my last glofish had before he died. When I got back home today, one of her pectoral fins looked kind of torn and she is struggling a lot to swim downward; the same thing that happened with my last glofish before he died (likely) from ammonia poisoning. I don't know because he was gasping for air while all of his tankmates of the same species were swimming normally and eating a lot... I'm sure it wasn't any flukes or bacterial infection because he didn't have white spots and didn't float when he died.
I'm thinking that I'm doing everything wrong and I really don't want to kill more fish accidentally. I'm going to be cleaning my tank with syphon cleaners and try to do my best... If you have seen this, please reply as much as you can! I don't know but maybe the previous one was bullied to death, since his fins were ripped and he went out of his way to hide a lot. Unfortunately that is what is happening to my beautiful orange Tetra and I'm really desperate for help :,( I can't upload a photo right now but please tell me what's the most sensible thing to do since I'm extremely sad about what happened.
I'm thinking that I'm doing everything wrong and I really don't want to kill more fish accidentally. I'm going to be cleaning my tank with syphon cleaners and try to do my best... If you have seen this, please reply as much as you can! I don't know but maybe the previous one was bullied to death, since his fins were ripped and he went out of his way to hide a lot. Unfortunately that is what is happening to my beautiful orange Tetra and I'm really desperate for help :,( I can't upload a photo right now but please tell me what's the most sensible thing to do since I'm extremely sad about what happened.