New spring ponds always start of with Algae bloom and then if you are
doing something right will go away.

///Owen\\\ wrote:
My pond had the usual algae bloom when it started up again, but it's settled
down OK. I have water trickling down a concrete lantern which soon got
covered with a luxuriant coating of algae. But..... one morning it was all
gone. Bare concrete. How come the algae vanished so quickly?

Thanks

John