Fluidized Bed Biological Filter questions

[ilikewomen]

i have a few questions about these filters. here they are.
how do this work? would one work as main filtration for a 55 gal with a single 3' gt? is this one i found on ebay worth it?http://cgi.ebay.com/Fluidized-Bed-B...ryZ46310QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

 

[ilikewomen]

comeon guys,i know you guys know about these

 

[vanilla__gorilla__]

fluidized bed filters are great bio filters but you would need to also run a mechanical filter to kep your water clean and you bed filter cloging

I have never see that brand before but pentair aquatics fluidized bed filters are good

 

[neoprodigy]

fluidized bed filters are great bio filters but you would need to also run a mechanical filter to kep your water clean and you bed filter cloging

I have never see that brand before but pentair aquatics fluidized bed filters are good

i agree.. fbf are great.. cant work alone thou...

 

[FSM]

Ultra bio filtration, apparently.

 

[ilikewomen]

ok and how do they work?syphoning?

 

[duke33]

ok and how do they work?syphoning?

Mine(lifeguard 300) uses a powerhead to circulate it.

 

[mrunlucky07]

I looked pretty close at that one on ebay and I think it would work, but the quality looks low end. The dimensions of it are about half of the rainbow 300 and the flow valve is not built in. With any FBF you have to connect a powerhead/pump and adjust it for a as slow as possible and still keep the sand moving.

 

[brianp]

ok and how do they work?syphoning?

Here's the premise....the smaller a particle, the larger the surface-to-volume ratio. This means that a given volume of sand has much more surface area (for bacteria) than the same volume of, say marbles. Generally, you supply filtered water from a canister filter to the fbf. The sand is kept in motion and oxygenated by the filter output. Bacteria are continuously knocked off the various sand particles by physical contact, allowing a continuos state of decolonization and recolonization. It is a dynamic form of biological filtration. I've never used a fbf, but most practitioners speak highly of it.

 

[T1KARMANN]

they are good but sometimes they are hassle

if they stop they are real hard to get started again and the good bacteria dies very fast