The tube is only around a month and a half old and im using rep cal i was misting them daily but they werent sticking their tongues out and drinking it so i started to do it every other day and there definatly eating enough because i feed them until they wont eat no more.Also my petstore is going to buy all 15 of tommorro for 35.00 a piece and their just under three inches does that sound like a good deal