I received the daphnia magna culture I ordered last Saturday from a great and reliable source and had a 10 gallon tank setup to try my luck in culturing these interesting critters. The culture tank has an air hose with low aeration and I even placed an aquarium thermometer to keep an eye on the water temperature of the tank. Aged pond water from my outdoor koi pond is being used as the daphnia magna culture water. I’m feeding them yeast dissolved in aged water and so far they are doing fine. It is their 4th day today and I can already observe that their numbers are multiplying, an opposite of what I got when I was trying to culture Daphnia Moina, a much smaller version of Daphnia Magna. A problem that I currently have with my setup is that the temperature of the tank water is high compared to the recommended 65 – 70 °F. Hoping that I could somehow find a way around this. Suggestions will be highly appreciated. You can ...