We have a sm freshwater tank too. They lady wanted something to care for without dealing with the science of the reef. ...on a side note, we bought one of the newer 12gal tall Fluval Edge tanks months back and it cracked during the night a few days after we set it up and leaked about 3 gallons out before we caught it. I'm still angry about that. We did get a new one for free but haven't set it up yet. I don't know if I will either. It's beautiful but a real PITA to clean\manage. Due to the design, the water spills out of the neck if you need to stick your hand\arm in for anything. ...and the stock filter isn't nearly enough. I want to rig it with a canister filter if I do end up setting it up. I'll post a thread on it eventually.