Thanks to this Newsgroup and links, two years ago I built a biofilter and
vegifilter. For the first time in five years I had clear water in my pond
for the summer.
In an effort to tidy up and disguise the plumbing last year I moved the
filters about 15m from the pond. Result green water all summer!. I also
changed the filter media from lava rock to scrubber pads. My question- Does
it matter how far from the pond the filters are? I will not ask about the
lava rock, people seem fairly divided on that issue!!
Charlie.