You originally used a canister filter for that tank right? Trying to decide if I should just stick with the built-in or get something else.. http://thereefuge.com/threads/90-litre-nano.448/ This guy appeared to have just use a hang-on filter with twice weekly water changes and a powerhead. If I do stick with the built-in, what would be the recommended setup for it? What else would I need for this tank? Powerhead, lighting, heater, possibly a chiller?