my female has been getting more and more red as shes gettin size on her. she's about 4.5" now. my other unsexed festae hasn't really coloured up that much at all. i'm thinking it may be a male for this reason
yeah should color up withing the 4-6" unless its not festae... Mine was a late bloomer i guess you can say she didnt get her color till just a couple moths back it was like an over night thing.. one day grayish next day full of life..