Originally Posted by Jill0
It may be ammonia burns but blood parrots are very sensitive to water conditions in that they will reflect bad quality water by getting black streaks or spots on them. They go away when the water conditions are good.
My parrots had the black streaks on them when I first got them from the LFS (see photos in my aquarium log from when they were babies) and all the black went away once they were in my tank for a few days. Happy fishies.
However, every now and then one will have the splotches come back, even though my levels are normal...I have noticed it happens when something changes (I move something in the tank or in the room they are in, or have strangers over even). They are very shy fish and only come out of hiding for me or people that are at my house often, so I've come to the conclusion the black is a sign of unhappiness.
Bubbles, my youngest one, recently got pissed off at me because I added a new cave to the tank for the Jewels. She hid for two days, got black splotches and just recently forgave me and is back to normal.
Talk about guilt trippers...