For these reasons, the household cleaner can be extremely detrimental to your pond's health and overall ecosystem. "Hydrogen peroxide does have algicidal properties, meaning it can kill algae.

To treat it, Stuart suggests using a moss killer before scarifying, otherwise, you risk spreading the moss through its spores during scarification. Moss is "much easier to remove" after being ...

Blue Water Ponds Inc., does the job sans chemicals ... according to McComas. It’s not an algae killer, he notes, but it’s safer and more cost effective to go this route, he said.