I've been doing exactly what you're suggesting with great results. It provides gentle water movement and has actually improved the colour of the water which was slightly yellow because of the type of soil that I used. You do have to be careful to rinse the filter sponge often (once a week or so) because it is the only filtration in the tank.
I'm using a 9W, 44 gph sterilizer in a small 12 gallon tank. I put it on the same timer as my lights, so that it only runs 12 hours a day. That should extend the bulb life and make it cheaper to operate.
http://www.aa-aquarium.com/showroom4.php?id=156&level=1
Cheers,
Dave
I'm using a 9W, 44 gph sterilizer in a small 12 gallon tank. I put it on the same timer as my lights, so that it only runs 12 hours a day. That should extend the bulb life and make it cheaper to operate.
http://www.aa-aquarium.com/showroom4.php?id=156&level=1
Cheers,
Dave