Como Fish Tank 6 Layer Sponge Biochemical Water Corner Filter Black

Sponge filters require a air pump and I recommend buying a check valve and air valve. See below for examples:

http://www.amazon.com/Jardin-Plastic-Aquarium-Control-6-Piece/dp/B008FM5QEA/ref=sr_1_3?ie=UTF8&qid=1374074173&sr=8-3&keywords=aquarium+air+valve

http://www.amazon.com/Non-return-Check-Valves-Aquarium-Pump/dp/B005HTT1P4/ref=sr_1_2?ie=UTF8&qid=1374074196&sr=8-2&keywords=aquarium+air+check+valves

The check valve will prevent water from siphoning out of the aquarium and on to your floor if your pump fails and the air valve allows you to adjust the air flow to your filter.

I've noticed uneaten food is sticking to the filter so it is adequately pulling debris onto it (doing it's job) it fits well in the tank corner and is safe for my Betta's fins.

I highly recommend this filter. Shipping was prompt and came in good condition.

I love this filter for the 10 gallon aquarium as it fits in the corner nicely and doesn't take up a lot of room. It does a great job in keeping the water cleaner. The sponge can be removed for cleaning as well along with the rest of the filter. It works great for my Axolotl as it is a smooth surface and she can not get hurt if she bumps into it. Great product.

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