Freshwater to Salt conversion advice...Fish Only

[mrz2u]

So here comes a general question that will I am sure get lots of opinions stated as absolutes but here we go just the same…

Right now I have a 200 gal African tank that I have grown board with…well, somewhat anyway. I accidentally got a female yellow lab in there and now it is full of yellow labs at the moment and little else. The tank is over six years old in its present configuration. Many of the others fish that it began with have been lost over the normal cycle of things since I put them in there are mature males in the beginning.

It has two Eheim 2217 with a standard media pack and both return to the tank through a BioWheel Pro 60 each. There are also two Marineland Mag350 canisters that I just run with carbon.

What I would like to do is tear this one down and make a salt tank with some combination of if not all of the following…Lions (three or so?), a shark of some sort TBD later and perhaps a eel or two as well.

The question is what would you folks think of the filtration I have for a fish only tank? What else would you think I should have and must have.

I know what I would have to do down the road should I want to make any reef type changes, right now I am just really thinking of fish only cause I just don’t have the time or inclination to do the reef I would want to do.