It's quite possible to use a canister filter. Like anything else, there are good and bad points to them.
The good -
Easy to set up, and if you do it right, easy to maitain.
Comparativly low cost.
The bad -
They must be cleaned often. I recommend weekly when used in a SW system. If you don't, they tend to become big dirt traps, and "nitrate factories". In this case, they also consume a lot of oxygen from the water.
Other thoughts -
Put your like rock in the tank. In a SW system with live rock, do not use any bio-media in the canister filter, for the reasons mentioned above. You do want to use a mechanical filter media and optionally various chemical media such as carbon.
No matter ho big the filtration system is, you'll almost always want additional flow in the system.
There also also many systems that don't even bother with a canister filter, and just use a skimmer. My personal preference would be to use both. The big reason is that filters and skimmers break down, and you don't want to have your reef crash from lack of filtration. With both, it's a lot less likely to have an issue.