You might try using a partial UG filter. Use gravel over the UG plate and
sand or whatever where there is no UG plate. You just have to find the
plate that will fit the area you want to have in gravel. You could use the
small, 5 or 10 gallon type plates and glue them together with airplane glue
to the size you want. Or I have made plates out of the plastic grating
that's used over flourescent ceiling fixtures. If you want more details,
let me know.
Columbus Ohio USA <))><
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