My NGT has been 100% on Massivore only for the past 2 months. Bought last November at 4" and only eating live earthworm at the time. I could've got it on the pellets quicker with more effort but life's busy at the moment. He's now 8" and growing-together with his attitude! He loves bossing the silver dollars especially when feeding. He's getting fat too which is great to see