Characteristics of TT:

bio filtration - good.
aeration - good.
mechanical filtration - poor

TT does not excell in any single characteristic of a great filter. However,
the combination of 1st and 2nd characteristics is quite good for a simple
filter. Further enhancement is possible by the addition of a swirling
separator. This would require a taller bucket, or the use of 2 buckets.

jo wrote:

Yikes, that's alot of fish per gallon. Now I have to go look up what a
bucket TT is!