it is a whisper 40i internal filter. there are also smaller 20i and 10 i models, as well as a green tetra model with a lid designed for amphibian terrariums. the nice thing about the filters, is that the pumps are interchangeable, so you can use a larger volume pump on a smaller filter unit. the work very well and use a whisper bio bag with activated carbon for filtration and a small sponge pad for larger debris. really work well in tanks with 2" or more of water.
CrAzY4bAlLpYtHoN
Jun 20, 2008 4:16 PM
Rating: 5/5
That's a very nice tank! Looks like a piece of nature! What gallon is it?
