I have had my pond up and running for a couple months now. It doesn't have any shade so I'm wondering why there isn't any algae in the water or around the edges of the liner. There is some algae on the rock where the waterfall/filter runs. Every pond I have had previously had algae in the water....this is the the first time I have run a bio filter, could this explain the no algae in the water. Like I said in the post title, I'm not complaining, just wondering where the algae is 
