Does anyone have any experience or recommendations with these filters? I'm trying to decide between:

1. Marineland Magnum 350 Pro
http://www.drsfostersmith.com/produc...fm?pcatid=3595

2. Aquatop CF500UV
http://www.amazon.com/gp/product/B00...uct?tag=vig-20

3. Marineland Emperor 400
http://www.drsfostersmith.com/produc...m?pcatid=14448

4. 5-stage Fish Cannister
http://www.ebay.com/itm/Fish-Caniste...item53f075aff3

Thanks!