How do you clean algae off rocks?
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Hi Karen,
Here's a couple of links to help you. Not sure what rocks have algae, but this should be broad spectrum and give you solutions.
https://www.aquascapeaddiction.com/articles/how-to-clean-algae-from-aquarium-rocks
https://video.search.yahoo.com/yhs/search;_ylt=AwrCxnU8rd5caUsAACIPxQt.;_ylu=X3oDMTByMjB0aG5zBGNvbG8DYmYxBHBvcwMxBHZ0aWQDBHNlYwNzYw--?p=how+to+clean+algae+from+rocks&fr=yhs-vz-vz&hspart=vz&hsimp=yhs-vz
try a power washer. Check out my before and after pictures when we used our power washer around our house where there was a lot of algae on our cement:
https://karupp-did.net/power-washer/