so lately my oscar has seemed unusually agressive. a few weeks back it went 10 days without eating hardly anything, and it chased every fish in my tank around like it owed it money. then it calmed down, started eating again, and started to build what i can only describe as a nest. its dug thru 2-3" of gravel, and exposed a large area of the bottom of my tank. its CONSTANTLY attacking its own reflection, and my pleco. my convict has enough sense to get the hell away from it. the other day i was feeding and it did basically a barrel roll and i saw its belly pretty good and i see a little tube poked out a bit. i tried to take a pic and couldnt get one clear enough to see what it was in the pic... but i got a clear one today. i think its an egg laying tube??? that makes my fish a female right??? (obviously i know only female fish lay eggs) or is this male parts im seeing? i think its female. i have never seen a pic of oscar's parts like this exposed.. and its not its anus. no the fish doesnt have hemorrhoids lol. just thought id post this and see what you guys think.
pic of the corner of the tank where its cleared it out.