The Garden Community for Garden Lovers

EM mud balls for ponds - do they work?


By Casat26

Mid Glamorgan, United Kingdom Gb

I recently noticed a gardening catalogue selling 'EM mud balls', which reputedly clear pond water of green algae and are safe for fish and other wildlife. Before investing in some, I wonder whether anyone has tried them and was it with any success?



never heard of them. with the right amount of plants the pond will clear naturally.
aim for about 2/3 of the surface covered with growth.

2 Jun, 2009


What about barley straw? thats supposed to keep ponds clean. Think most garden centres that have aquatic areas will stock it. Not too expensive either.

2 Jun, 2009

How do I say thanks?

Answer question


Not found an answer?