in my region.
This is a pond that I started filling last night. The greenish color (at least in my case) is due to precipitated iron that is not concentrated enough to produce a brown or orange color which one would get in a small tank. Except in really cold water, which is dense enough to slow settling, it takes about a week or two for the water to turn gin clear unless there is an algae bloom, some soil erosion, or lots of trout kick up silt.
Sure looks like an algae bloom doesn't it?
When I say gin clear I mean gin clear! I would guess if the pond was 25 feet deep I could still see the bottom. Of course it doesn't stay that way if fish are in the pond adding nutrients. Additionally in the trout pond when well flow is 24/7 it stays this green color.
