That should be enough filtration. Personally, I would add a canister filter or another marineland 350, but I don't think you have to. The general rule for hang on back filters is to have 10x the gallons per hour than your tank size. So you should have a total of 750 gallons per hour of filtration. For canister filters, it's 5x your tank size.
Not that much educated with cannisters as I did this hobby from my friend getting me on to it and he had no idea in canisters so i'm not that informed
I'm good with hob's and the biowheel seems more unique HOBs
The boi wheels are nice for the biological filtration and that the cartridge ones are great for better removal of "stuff"
Canisters can hold a lot more biological material than the HOBs can ever hope to. You will also find that with canisters they can pump a lot more water per hour than the HOBs. In the end you can use whatever you like to filter your tank.
I would suggest a lot of reading up on canister filters on here thou. We will all happily tell you anything you would like to know about them.
Oops. I just realized I gave you the GPH for a 75 gallon tank.
For a 55 gal tank you should have either
HOB: 550gph or more (10x)
Canister: 220 or more (4x)
More is always better when it comes to filtration as long as the fish are not getting blown around the tank by the current.