I live in an extremely arid climate in the western United States. This is how I give my Medusas a 15 min drink every week. These are the small ones all together.
I use a high-walled bowl that allows me to prop them all upside down but not float free. It's basically a game of Tetris. I try to keep the bulbs up/out of the water (though I'm never completely successful). Then I let them dry upside down for several hours before I put them up right. It's Spring water, by the way, 'cause I get that question a lot.
For my really big boys, which have a 5 to 8 inch wingspan, I have to do them separately.
by Transplanted-Travels