ultraviolet lights

I have read about these, but not sure how they work and if I should get one. How do they install in the pond? Any information you would give would by greatly appreciated.

Thanks

heima

There are many of us who have had them and do just fine, and there are others who swear you can't get results without them. My pond is clear, I can see grains of sand on the bottom without ever using one.

if you have green water it will help ... easy to install .cut your pump out line. put in uv and keep going.

The large 55 gallon bio filter I made did it all. Mine looked like pea soup one day and within 48 hours, the filter removed all of it. The 7000 pieces of plastic and the over 36" it had to travel up through it allowed gravity to remove it.