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Green water in ponds GB
Frank39
Posts: 2
Does anyone know how to eradicate green water in ponds.
0
Frank39
Posts: 2
Posts
Barley extract works well too. You can buy it from most garden centres, or of course online.
If it is only green water as opposed to blanketweed, and it is a wildlife pond you can buy live Daphnia (water fleas) from an Aquarist shop and they will soon shift it, plus they are self perpetuating
if you have a pump and filter system a UV will do it.
if not a balance has to be achieved by planting
ie. Two thirds of surface covered by plant growth
I use straw (barley straw mixed with lavender stalks is apparently best) inside a leg of a pair of tights. It really does work, cleared my pond from a thick pea soup to crystal clear in 2 weeks (takes this long for the straw to start breaking down and releasing the enzymes needed to stop algae multiplying)
It soon blends in and doesn't look unsightly. I do have a UV filter too but on its own wasn't sufficient enough in hot weather. Replace straw every 6 months (put fresh in 2 weeks before removing older straw so it gets time to get going) or if it goes black and starts to smell. Apparently chemicals are a quick fix and it can return with a vengeance. Good luck.