I put a rubberband around the jar, to mark the spot it’s at right after feeding.
a. It will have at least doubled in size. This will take place over 4-6 hours if the temperature in your house is around 70 degrees. If it’s cooler in your house, it will take a bit longer. I put a rubberband around the jar, to mark the spot it’s at right after feeding. Then, as time passes, you’ll be able to keep track of how much it’s rising.