The pond water looks clean, but the skimmer gets clogged every day with a heavy sticky mass. Over the past years I have needed to empty the skimmer no more than twice weekly (except during the leaf-fall season), but now it has to be done every day, and the water flow gets blocked so that the refill control does not work and the pond gets over-full.
Would this be algae ? There's plenty of algae on the rocks in the pond, which the koi happily munch on, but there's no heavy deposit on the bottom of the pond.
What to do ?
Would this be algae ? There's plenty of algae on the rocks in the pond, which the koi happily munch on, but there's no heavy deposit on the bottom of the pond.
What to do ?