Miah,

It looks very nice. I have a roughly 350 gallon set up using a rubbermaid round horse trough and three lined wine barrels. Nothing but goldfish and minnows and lots of plants. Water gardening is wionderful. There is nothing like the noise and movement a water feature brings to a garden. What you are building looks pretty advanced (1500 gallons?). If you haven't already read it I highly recommend "The Pond Doctor" by Helen Nash

http://www.amazon.com/gp/product/080...730257?ie=UTF8

Lots of good basic information for someone interested in water gardening.

I look forward to seeing more installments on your pond.

Cheers