Lol it made a bit of sense!

I hope someone can give me a pic of one so it makes a bit more sense! Lol

I have never had an undergravel filter, but once bought a tank that had the base.. which was just this http://www.aquaguide.net/images/pages/3/index.81.jpg

So do I need to put anything under the plastic base? How does the water get clean?

x

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