Before coming to work I checked on pond and found all fish floating. Not one fish was alive, have not tested the water yet, will do when I get home. Water today had a slight brown tint. Yesterday I potted up a bare root Canna, I used a organic potting soil I just notice the bag has water control. I will not be able to test water till tonight today is hitting close to 90, will test result still be good ? I feel terrible about my fish, I still have the feeder in 10 gallon.