my Zen Water Garden and Koi Pond

[Reef Pilot]

Last year my pond turned green after my UV light crapped out, and took a while to find a replacement. But once it was replaced, it cleared right up again.

I turn off the UV light for the winter, and then on again in the spring as the water warms up and I detect a loss of clarity. Right now, mine is still off, but I think I will turn it on very soon now.

Also, have never changed the water in the pond. But of course, living here on the coast with the rain, as a lot to do with that. I have finally had to start adding water now to keep it full,.... last time for that was back last fall.