Bio wheels? Are they any good at all?

"Limnophile" wrote in message
...
| They don't REMOVE ammonia and nitrites persay.
| What they do is provide an excellent environment for the
| bacterium that process the waste in your tank. The alternating
| immersion\emmersion seems to be superior to media that is always
| underwater.
|
|
| They are pretty good when they work. You may have problems with thw
wheel
| getting stuck, or not turning if water flow decreases. I tried a
few, one
| worked well, 2 kept getting stuck.
|

Correct. It is important to keep the axles and axle-ways clean and
free of debris. It is normal for an established bio-wheel to 'hitch'
or stop on occasion, but if it stops long enough for the pleated
fabric to start drying, you have a problem. I prefer the filters with
a spray bar that is directed at the wheel to keep it rolling. Even
with the wheel loaded up with 2 years worth of gorp and slime, as
long as I keep the axles clear, it never stops.