Pond has skimmer with a 4000 gph pump. Pond is 13'x7'x3'deep, with an L shaped shelf, which has a large basking rock placed on it. There are 3 returns, one flows to an up flow bog and the other 2 return directly to the pond. The pond is about 3 weeks old at the moment. Eventually will place a net over it to prevent predation of the baby turtles.