"Paul Kelly" wrote in message
...
Hi all

I have a vegetable filter and a pond with no UV - i now have a very green
pond - this is the first time (move in three summers ago) - its a 500
gallon
pond

I have been told that i should grow water cress in the filter - can
anybody
advise on type and where i can can get some - and if it will work?
Location
= NW England

I get mine at the supermarket, and just tuck the bunches in under a rock.
Mine has not proliferated though. It appears to be getting eaten. I highly
recommend something with more dense roots like Water Hyacinth, Water Iris,
Frogbit, Water Lettuce, etc.

BV.