It was an overcast day with about a 5 mph wind. its the only ph test done. I have to get a tester of my own so I can do tests often. The desolved oxygon was 110 also. I haven't yet put in an airator. also trout I put in are light in color . Pond guy tells me thats from photo cells in there skin and that as I develop more dark vegitation in the pond that will change. the pond is only 8 months old and only full to the banks for6 months.