Hello. I am currently cycling a 240 litre tank with neon tetras (which I explained in my other thread) and I am quite worried for my fish. I was watching them and one of the fishes has lost nearly all of its red colour and possibly a deformed fin, which another fish's fin looks similar. Is it possibly due to bad water conditions such as ammonia? Is the anal fin deformed or is it just faeces coming out of the fish? Please reply as soon as possible. Thank you.