Yeah, what's wrong with fronts, oscars and plecos? The ID shark is technically gonna get too big, but a 220 is better than 99% of ID sharks sold...
Mudslinger14;4984851; said:Frontosas, as stated your tank isn't optimum for them individually. Thats why most people keep them as colonies in species only tanks.
ID sharks grow WAY too big and are WAY too active for even a 500 gallon tank. Oscars, no...They don't grow too big, but they are very messy and so are the plecos. If you love them to bits...Keep em, but you're going to need a lot of extra filtration, wcs etc.