You don't need something like that. It's a canister filter, and for a reef tank, it would be a pain. Yes, cleaning it once a week would prevent the Nitrate issues, however, it would potentially give you ammonia spike issues as the bacteria in it are disturbed. I wouldn't want the hassle of something like that that would have to weekly cleaned. As long as your tank has liverock, a good skimmer, and you perform water changes as necessary, this would be an needless expense. I do use a simple hang on back filter for occasional carbon running, but that's a once in a while thing.