Yeah but you can also just remove your foam plug from the current culture and then remove the lid from the new one and tap the flies in. Takes two seconds and you don't have to deal with rigging all the tubing.Hmmm... Interesting idea with the aquarium tubing, lol! Hey, sounds like Josh's Frogs' ff medium. I couldn't help it... the first time I mixed up a batch, I had to taste it! Wasn't too bad, really... :lol: