Hello. Looking for info. I recently acquired at 40 gallon breeder tank. I'm wanting to get it up and running ASAP. Which probably means it's going to take some time. I've only ever dealt with HOB filters. Mostly Aquaclear models. Question Time 1. Would a canister work better? Or could I stick with two HOB? 2. Is Sun Sun a good model? 3. What size? 4. Should I pair a HOB with it for surface agitation and oxygen exchange? 5. How exactly does a canister work, hook up, and run? 6. What's an average canister price? 7. What else should I know?