Yeah, since joining here I've realized just how drastically behind one of mine is. She doesn't /look/ underweight - but apparently she is. I've bumped her up to 25% and shes doing great. I'm trying to get rid of the frozen mice I have, so I can buy rats the next time around - that should help significantly as well.
I would say to keep it on a 5day rotation at 30%. I feed Ryn 2x 35g mice every 5-6 days (depends on if she wants to eat or not). Once I get rid of the mice, I'll buy rat pups and continue the same thing.
30% sounds like it might be more helpful for yours. She may need the extra - though how are you feeding her? 1 rodent at 30% or 2 rodents at 15% each? and if the 2 rodents - do you do continuous feed, or do you let her finish one and strike at another?