need find cheap (or free) good filter medium for my 436 Gallon filter

I'm not sure of the cost but I think it is relatively inexpensive. We use black
vinyl screening that comes in 25 ft. rolls at Lowes. It acts as both mechanical
and biological (veggie is the monster water hyacinths we float on the top).
With 50 yards in a 150 gallon stock tank we clean it once a year and all gunk
smells river water sweet.


k30a
and the watergardening labradors
http://www.geocities.com/watergarden...ors/index.html

Matt Helliwell writes:

Or instead of window screening, you can use green house shading.
Probably the same stuff but, in the UK at least, seems easier to obtain.
You can also get a variety of mesh sizes.

Me, I swear by bird netting. Never clogs, slows down the water so that
particulates drop out.