Hello, my girlfriend and I recently purchased a parrot cich. We intended to put him in with baby red ear sliders and that didn't work. They were nipping at the parrot. We then put the parrot in my 75 gallon tank with a clown knife tem. bass ect. She attacked my knife fish so I took her out right away. We relocated her to a 10 gallon tank by herself. Now she is getting black coloration. It started on her lips but has dissappeared and is now on her back fins and her top ridge. Do any of you know what this can be? I heard parrots develop black spots when they are stressed but I don't know how accurate the source is. Any ideas if my fish is sick or not and how to treat her?

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