In Tank bio-filter

[legendaryfrog]

since my filter is doing a poor job with its bio filtration, i thought about an in tank bio filter. check the picture for a general idea of how it looks.

the bio-ball-holder would be discuised as a log cabin with brown filter mesh at both ends. think it'll work?

 

[Rbishop]

What kind of filter do you have that is not working?

For me, the best in tank bio filter is RFUG.

 

[amosf]

If you are going to have submerged bio-media then you might as well have it in a canister outside the tank and save the tank room. Otherwise you could look at above tank wet/dry trickle which is excellent bio-filtration and hidden under the hood.

 

[Rallysman]

Sponge filters!!!

Bioballs don't do well submersed. They are better in a wet/dry application.
Sponge filters are your best bet IMO.

 

[legendaryfrog]

would normal sponges work?

the filter is an eheim canister, which has limited room for biomedia.

i cant do anything outside the tank itself, because the tank itself serves as a halfwall.

 

[Rallysman]

Air powered sponge filters like these will be much more effective than submersed bioballs.