Would it be ok adding two oscars (4-5 inches) in my 55 gallon just for a week or two (Selling the Butti), Because I already have two oscars they are pretty darn mean pounded a managuense two a corner(got rid of him). They also look like they're breeding.. twitching their heads and digging pits around the whole tank. They will be moved two a 200 hundred gallon Soon.