Use the EcoBlast on the rocks. Pull off the algae and then treat the rocks. Or turn off and let the sun bake the algae off. Remove it and don’t let it get into your basin. Or use MicrobeLift Algae way 5.4 on a regular gasin.

You could do a water exchange no more between 10 and 20%. Use a detoxifier if you use tap water. You have to use a bacteria in your pond to keep the ecosystem balance. A good ecosystem in a pond would consists of rocks and gravel, filtration system, a balanced number of fish, and plants. To keep the ecosystem balanced you need to use a bacteria enzyme on a regular basis. Hot weather and full sun can bring on green water. Green water can take up to 4 to 6 weeks to clear. The extreme hot weather is causing many problems with green water. Get a sun shade cloth and shade you pond if you can.