Ok I have been contemplating about getting some more fish for my 55 gal tank. Right now I have 4 pictus catfish were the smallest is about 2.5 inches and the biggest almost 5. I have a firemouth that is maybe 3 inches. I was wondering what everyone else thinks I should get. I am running a FX5 on the 55.. overkill but I had it so why not use it. So the fish need to with stand a good current. open to all suggestions.