Here is my pond set up. I am cleaning the filters and treating the blanket weed every 2 weeks at the moment. I had a serious green water problem after my spring clean in March so had to put my spare UV pump/filter in the top pond. All seems well now. Fish aren't interested in eating today as they're too busy chasing the female in each pond. We have newts and frogs in there too, and earlier in the Spring there was a grass snake in the garden near the ponds. I wasn't too happy about that but left it alone and haven't seen it since.