I have had a small maybe 1000 gallon pond for 5 years. I have 6 Koi and 4 goldfish in it. I am looking to totally revamp the whole thing next year as my fishies are getting to big I think. I am not a pond guru and don't want to breed and sell Koi. I just want to enjoy my pond. I have not even tested my water for like 4 of my 5 years. I know I should be but it took all the fun out of it because I was just always chasing better numbers. I do water changes a lot and in 5 years have only lost one fish so far. It was dead in the spring after everything thawed. I know my luck will eventually run out though. Are sand filters good to use or not? I would love to just backwash once a week and then add the water back in. In a perfect world that would be a great plan.
