Not sure this is out of topic for this forum, since it's not specifically about plants, but I noticed today that my Angelfish is covered in what looks like wounds and swimming very weakly. The pair are on their fourth set of eggs over the past two months (all babies end up disappearing before I can rescue them and place in a dedicate rearing tank). The larger angel is particularly violent about guarding the eggs and fry. I've lost two black tetras that showed similar "wounds." I saw the larger angel attacking them frequently each time the eggs were laid, and now he's attacking his mate. What I can't figure out is if the fish are first getting sick, making them more vulnerable to getting picked on, or if the damage is originally from the large angel. All other fish seem healthy. Any thoughts re disease and/or behavior modification would be appreciated.
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