11-11-2006, 03:10 AM
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A clean tank
I have a 7 gallon hexagon with the "marineland' built in filter and biowheel. I have never been impressed with the filtration: it just didn'seem to move a lot of water and keep it clean. The tank is about 16 inches deep.
What I have done is, bought a Fluval 1+ submersible filter (which only has a sponge in it), and instead of using the marineland filter in the build-in unit at the top of the tank, I put a small bag of activated charcoal (made for the aquaclear 30 hang-on-back filter). Now my tank has a great charcoal filter and sponge, and the water is crystal clear! :D