I've had two oscars since they were both very little, under a inch. From the start they were together non stop and never tried fighting one bit. The tiger Oscar is probably 5-6 inches give or take, Tha albino is about an inch shorter. Over the last two days the tiger all the sudden has started to bully the albino??? And like I said before these two from the start have been inseparable. I thought maybe the albino was female and tiger was male because they get along so well. Anyone have any idea what could be the problem?? Thanks