idea for added bio fbacteria filtration

[mjohns]

okay so i was thinking of taking the gravel out of my tank and going bare bottom for awhile. I was thinking something like this could help boost the BB in my tank.Hopefully the pic will explain itself but im unsure if it will work very well

thanks.

 

[Knowdafish]

???

 

[mjohns]

uhh ok.. well the tube is filled with gravel for the BB to grow on, the air stone is probably not neccesary maybe just the air tube will suffice. As the air is pumped from the bottom of the gravel to the top its also taking water with it, hopefully feeding my BB from the ammonia in the tank. Im wondering if it might be too much oxygen though?

Its not meant to filter the water of alot of debris though. just to house the BB that would otherwise be on the gravel in my tank.

 

[mike_sema]

that sounds and look like a Fluidized Bed

 

[mjohns]

that sounds and look like a Fluidized Bed

yes similar concept except i planned to use air instead of a powerhead, i searched but only found ones using powerheads. hmm

thanks

 

[WeeNe858]

gravel does have as much surface area as the sand used in a fluidized bed.and the air bubbles would build up and cause an eruption.

 

[mjohns]

gravel does have as much surface area as the sand used in a fluidized bed.and the air bubbles would build up and cause an eruption.

hmm yes i think your right, even with a air stone? maybe if i used quite alotl less gravel? or else i could just buy a smallish sponge type air filter.

 

[Dr Joe]

gravel does have as much surface area as the sand used in a fluidized bed.and the air bubbles would build up and cause an eruption.

Not even close! Sand has more surface area than gravel by an order of several hundred magnitudes.

To have an eruption would take a buildup of pressure and this has an open top!

.

hmm yes i think your right, even with a air stone? maybe if i used quite alotl less gravel? or else i could just buy a smallish sponge type air filter.

Make the unit as you planned with the top 1/4" above the water level and use the air stone (finer bubbles will help with oxygenation, degassing and water lift (circulation).

Basically what you have stumbled upon is a vertical UGF .

Dr Joe

.

 

[mjohns]

Not even close! Sand has more surface area than gravel by an order of several hundred magnitudes.

To have an eruption would take a buildup of pressure and this has an open top!

.


Make the unit as you planned with the top 1/4" above the water level and use the air stone (finer bubbles will help with oxygenation, degassing and water lift (circulation).

Basically what you have stumbled upon is a vertical UGF .

Dr Joe

.

Thanks for your help, if i had the top 1/4" above the water would it still overflow with water back into the tank? i want water to flow through the bottom and out the top.

Thanks again

 

[Nic]

good idea...