Hi,
This Spring we had a 3mm dia x 1.5m deep semi-sunken pond built. Being a complete beginner, I was grateful to be able to find so much useful information on this website.
The pond is fibreglassed and has a gravity fed Pondsieve, pump (capable of turnover about once per hour), Bubblebead filter and 55W TMC UV sterilizer. The pond location is relatively open, with some south shade from the house and no plants. Pond is fairly lightly stocked with 14 small koi, average length about 250mm. They are in great shape and have grown considerably this summer.
My problem is algae on the sides and bottom of the pond, leading to enough greening of the water that you can barely see the bottom.
Can anyone offer advice/experience on the best way over this problem please? Should I plant lilies or floating plants (water lettuce?) to absorb the excess nitrates and sunlight or is there a way to rid the pond of the green water and still be able to see the koi?
Any responses would be gratefully received.
Regards,
John Mills, Surrey.
Posted on Oct 14, 2007, 9:53 PM from IP address 82.69.28.26