This is the first year I owned my pond so far have only spent money on BG stocking. $230.00. I am next planning a spillway, dock, and adding cover to the pond. ( thanks for the tips and info from forum members) Cost ? dont know yet. I plan on doing everything right the first time but keeping costs to a minimum. I am also currently designing the house, shop, and stable for my property also. I'll keep you guys posted on my ponds progress.