I"m very upset. I have a 90 gal freshwater. I have 4 very beautiful large angels, a black african ghost knife, 2 plekos, 3 vampire shrimp, and 1 feeder guppy that lives under radar. This morning I found Ich on my angels and no one else. Infact there's still no signs of it on them. (The ich part really isn't the problem) Now that I've come home from work I've discovered a reddish colour on my angels. What is this red??? Is it harmful? I'd be upset not to be greeted in the morning