I've tried a couple different size rats to try and break my male super pastels fast with no success. Looking in my records last night I noticed one change I made just before he quit eating was I went to a half cypress half aspen mix to try and fight high humidity in his T8. Before he was always on 100% cypress. So I'm thinking I'll skip him this sundays feeding and completely clean and re do his enclosure back to pure cypress. I thought someone had also given me advice in a past thread that doing a complete cleaning/cage change can sometimes trigger them back into eating.