No filter at all! just an eco system with fish! They are self sustained! the round one (Kostroma) is all most 36 inches deep.. very hard to dig a hoe that deep in rocky soil..
And Kupala is 18 inches deep! (the longer one by the house)
Both are 285 gallons of water.. Though the math on it might be flawed.. I just filled a 5 gallon bucket with water and timed it to get an idea how much water was in the ponds.. Odd they both came out to the exact same amount.. and they are named after twins from Russian folklore.. All so There where two Winter snowstorms that produced all most the same amount of snow each.. I named them Kupala and Kostroma as well.. the first of these snow storms hit right when building the pond so I called it Kupala after the pond..
It was all very interesting..
And Kupala is 18 inches deep! (the longer one by the house)
Both are 285 gallons of water.. Though the math on it might be flawed.. I just filled a 5 gallon bucket with water and timed it to get an idea how much water was in the ponds.. Odd they both came out to the exact same amount.. and they are named after twins from Russian folklore.. All so There where two Winter snowstorms that produced all most the same amount of snow each.. I named them Kupala and Kostroma as well.. the first of these snow storms hit right when building the pond so I called it Kupala after the pond..
It was all very interesting..