I bought one of these filters not too long after I started keeping fish. It’s a good little filter for a 20 gallon tank. It will nicely move all the water in your tank. It’s got a good flow rate of approximately 90 gallons / hour when filled with media. I only thing I don’t like about these filters is that the media capacity of the foam as suggested by Hagan doesn’t give you a lot of filter media to work with. IMO, your should not use any of the filter media as suggested by Hagen and fill the compartment 80% full with biomax rings. That really improves the filter’s capabilities

------------------------------
If you take your time to do the research FIRST, you can successfully set-up and keep ANY type of aquarium with ease.
"Not using a quarantine tank is like playing Russian roulette. Nobody wins the game, some people just get to play longer than others." - Anthony Calfo
Fishless Cycle Cycling with Fish http://www.aquaticcommunity.com/aquariumforum/showthread.php?t=76398”] Marine Aquarium Info [/URL] [URL="http://saltwater.aquaticcommunity.com/"]