What To Get?

[Soccer_Fan]

hey guys, whats up?
I have a 55G tank.
So far i've got 2 Bala sharks, 1 Silver Dollor, 1 Catfish, and 1 Pleco.
All are pretty small still. The Bala Sharks are about 2 inches, Silver Dollor is about 3 inches , Pleco is about 1 inch, and catfish is about half an inch.

What do you think I should mix with these guys?
I would like to get some different types of sharks but i dunno, i was planning on getting a red tail shark but i heard they can be agressive with eachother.

Got another question in my tank would they grow to there maximum size?
Some people say they will, but then some say they wont couse the tank is to small.

Thanks. 8)

 

[Auratus]

More silver dollars. They like to be in groups of at least 4

 

[ryan]

Yeah I would have to agree, more Silver Dollars.

Good Luck

 

[Soccer_Fan]

Alright thanks!

 

[G_Sharky]

Get a ccolombian white tip shark catfish I think a 50 G is big enough for a shark that would grow up to 12".