the pond was already in place when I bought the property. It was hidden due to all the surrounding shrubs were overgrown. All the plants came up on their own, lillys, orchids. The pond is roughly 8'x3', the deepest part is maybe 2'. Not sure what that amounts to in gallons. I placed 20 snails in the pond, the frogs were already there, they are a bright green color. Not sure of their name. I have no idea how many there are, lots.
I have a tetra bio filter on it, it looks like a little keg, basically a foam pad and bio balls inside. I need to buy a UV filter. The algae is out of control.