Hi. I have five young angelfish. All of which were seemingly perfectly fine yesterday. I had one rasbora who had become sick a few days ago and I removed it from the tank. It had what appeared to be a cottony like side fin and gills. It later died. Now one of my angels is showing the same sign and I think its probably already too late for it, but what I need help with is that I notice two of my other angels appear to be EXTREMELY bloated although they are behaving normally and don't have the white fungus looking patches. They also have reddened gills. Can anyone help me diagnose this phenomenon or tell me what I can do??? I am in a total panic..