OK. So the Web site says the cost is about $20 for a 10, 15, or 20 galon tank that "provides over 5 quarts of filter volume." "Compared to popular sponge filters that is a 3-10 fold larger filter the lasts at least 18-24 months between maintenance."
I don't doubt the claim. The price is a little on the high side. Cheaper than an over-the-side mechanical filter, but a little more expensive than an old fashioned box filter or a conventional sponge filter.
Has anyone in the club used them? Do you notice an appreciable difference, in terms of reduced maintenance, or healthier/faster growing fish, as compared with conventional filtration?
It's a lot of money to invest, but if you get dramtically different results, then I would think it would be worth the money. On the other hand, for the parsimonious, it might make more sense to use conventional box filters/sponge filters, and cultivate philodendron or pothos roots in the tank (leaves in the air), to soak up the NH4 before it can be converted by tank bacteria into nitrate.
If anyone has had success with these, I'd love to hear what you have to say.
<div class='quotetop'>QUOTE (Pat Kelly @ Dec 9 2008, 01:24 PM)
<{POST_SNAPBACK}></div>
It comes in a sheet. I did not measure the sheet its self. One sheet did 6 55-gallon tanks. [/b]