Hi everybody I am a new member. I think I have a problem with my tank again its all panic in my house! . I just spotted one of the back neons has a big gash on him or her of course I did notice the blue neon tetras are all at the bottom of the tank under the filter and are flickering. The black neons are swimming rapidly and flickering as well. I have garamis to but they dont look any different to what they are usually like. My ph levels have been high and I cant get em down no matter what I do :shout I put ph down in every week but with no effect, I must be honest I have doubled the dose the last two weeks. Everything else is ok thou. We had algee bloom but thats under control now I hope. One of the blue neons yesterday was really dark blue and chasing the others. Can anyone tell me what to do any kind of help at all??? PLEASE