Gary where did you get your stock tank? I got a Rubbermaid stock tank that's
300 gallons and 5'9 inches in diameter and 25 inches deep Part number 4247 .
http://rubbermaidcommercialproducts....5141&do=detail


"Phyllis and Jim Hurley" wrote in message
...
We are with the no rocks cohort. They don't give you all that much
surface as compared to plant roots. Easy clean bottom is overwhelmingly
best.

Jim

JGW wrote:
We're getting ready to build our new pond. The contractor wants to
line the walls and bottom with rocks, which he says will serve as a
great huge biofilter. I have read that it's impossible to keep the
pond clean with rocks on the bottom, and that they can trap hydrogen
sulfide gas.

What are your thoughts?

Thanks.

Joan
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