"Frank" wrote in message
ups.com...
Dick wrote,
I pulled my 4
bio wheels as they were not turning without constant cleaning of the
filters.

Ever check your DOC levels?
========================
A friend told me small snails would clog her bio-wheel filters. I can't
picture this since I never used them. They were probably going after the
bacterial coating. She finally replaced them with Aquaclears that I
recommended.

--
Koi-Lo.... frugal ponding since 1995...
Aquariums since 1952
My Pond & Aquarium Pages:
http://tinyurl.com/9do58
Troll Information:
http://tinyurl.com/9zbh
~~~ }((((o ~~~ }{{{{o ~~~ }(((((o