I had a couple in my 30 reef - they DID get clogged up with corraline
growth, but a vinegar dip and picking off the growth gave them new life
when it happened. I did this about half a dozen times before a broke
off a piece that joined the geared inside mechanism to the outside
revolving jet. Overall, I'd say they were worth the inconveniences,
especially at the price on marinedepot.com - I paid twice that for them
at the LFS

hth

Greg


Mark Cooper wrote:
Spotted these on marinedepot. Anyone used these? Look like they would get
stuck easily as coralline etc. grew on them.



http://www.marinedepot.com/md_viewIt...roduct=HD01401


Thanks,
Mark