Hi I have a albino Oscar cighlid and a convict female cighlid, along with others in my 55 gallon tank. We have had them for maybe two weeks or so and at first the Oscar and other cighlid we like best friends they were near each other all the time never aggressive. Well my convict laid eggs a few days ago and starting yesterday the Oscar started nipping at my female convict. My oscar has the Ich, since yesterday we got medicine for him though. But I'm worried and not sure why he's all of a sudden going after my female cighlid. Is it because he wants her eggs? Or just crabby because he's sick? Please help if anyone can. Thanks!