Has anyone tried this as filter media???

  • We are currently upgrading MFK. thanks! -neo
Well whats the secret behind the bead filters that ponds use (and some large aquariums)?
 
sterling_mcdaniel;2906192; said:
Thanks for the quick reply. Pot scrubbies work great for W/D but in a fully submersed application they are the best performers. but you do have to admit a clear 3in tube that is a foot and a half long would look pretty cool if it was filled with these. I am also wondering if you could get some sort of half assed FBF using one of these.
but once again dreaming.
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Why not save yourself some money and do a full-assed :naughty: fluidized bed filter? I mean, they are easy to make and have amazing surface areas:nilly:
 
wow_it_esploded;2907349; said:
Why not save yourself some money and do a full-assed :naughty: fluidized bed filter? I mean, they are easy to make and have amazing surface areas:nilly:
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because i have a POS HOB protein skimmer that i want to turn into a filter and the power head i have will not push enough water to run a FBF. plus this filter will go on a 75 that really does not need any more filtration. I am just trying to find somthing new.
 
If you really do not need more filtration, I would go for it, just for the cool factor.
 
Ullopincrate;2907544; said:
Bottom line issue is poor surface area. It could look cool but probably wouldn't be very effective.
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Well thanks for crushing my dreams. can't you magically make them have more surface area!
 
Amazed at the amount of people that use srubbies in their canisters. When you compare the surface area/cost of scrubbies to biomax, ehfisubstrat, matrix or bio glass. The scrubbies are far from cheap.
 
well, lets look at this mathematically:
1 bb is 6mm in diameter
The formula for surface area of a sphere is: 4(pi)r^2
So, plugging in our numbers: 4(pi)3^2
Simplify: 4(pi)9
Simplify: 36(pi)
Multiply: ~113.1 square mm

So, each pellet has about 113 square mm of surface area.
Converting that to inches: 113 sqmm = .17515035 sqinches

In a container of 5000 pellets, you would have a surface area of:
875.75175 square inches, that is 6.08160938 suare feet per 5,000 BB's.

Now, the only hitch is that we do not know how many bb's are in a cubic foot. If we did, we could figure out how many square feet per cubic foot.
 
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