I have 14'x22'x3.5' pond (one month old with two koi, 10 gold fish),
now I need to setup a veggie filter but not more room outside of the
pond (concrete & walkway & patio), how do I seperate the pond into two
section?(one for plant one for fish) what material should I use to
prevent the fish get into the veggie filter?
Thanks in advance.
John