Fluidized bed filters???

Hello all, I have been looking at an interesting bio filter.

It's called an Otto fluidized bed filter (link below)
http://www.aquariumproducts.com.au/cart_view.php

Anyway because I haven't heard any reviews on fluidized bed filters I wanted to ask if anybody has experience with them.
I understand that they are bio filters and was planning to have a canister for mechanical and bio filtration and due to the extreme bio load of my fry tank I wanted double the bio filters..

Thanks for reading

personally i prefer canisters. the only difference is that the canister has an inbuilt pump whereas the FBF need a pump. adding one onto an exsisting cansister system will cause the flow to drop too low.

Ah hey Doug,

Thanks for the input. That was the only thing I could fault with it. That and not having mechanical filtration. Anyway. I thought it could be a nice addition to a large aquarium as a seconday filter. With a canister.

Considering it's high beneficial bacteria capacity in ratio to size it could be a nice addition to a sump system to help keep parametors in check.