I'm curious as to when I should scale up her enclosure. She's about 450 grams (pre-poop) and roughly 24 inches. Right now she's in a 41.2 qt IRIS tub (http://www.amazon.com/IRIS-41-2-Weat.../dp/B002LHU6CM). I'm fairly certain she will be fine with this tub for a while but I'm just wondering about other options. Thanks