"Dick" wrote in message
...
|
| I will say a good word for underwater bios. I have a 29 gallon
JEBO
| glass tank with a built in filtration system. It has small ceramic
| donuts as part of the filtration. This tank is consistently clear
and
| clean.
|

As an aside, clarity of water has little or nothing to do with the
health of the tank, or the suitability of the water to support fish.