Fluidized Bed for small tanks

[SoilGuru]

I am working on a little experiment and I want to use a fluidized bed filter in a 10-15 gallon aquarium. Now the smallest filter I'm aware of is the 300FB filter by rainbow, which I happen to have on my 50 gallon tank. However, it is way too big for a 10-15 gallon aquarium. Does anyone know of a small fluidized bed filter you can buy on the market? If there is no such thing, I'll probably build one, but I was curious if there is anything out there.

Thanks

 

[Lateral Line]

I don't know of one that small. I guess if you used small enough reactors, you could build one. Thing is the bed needs quite a flow through it in order to fluidize it in the first place.