Yeah I think twice or three times weekly will help that, start with the twice and if you don't see improvement by 2-3 weeks time, bump that up to three times weekly to see if that helps. After 2-3 weeks of that, if it's still looking worse then I'd start looking into some medications for him.
Rembrandt II, Suiché
Leopards: 1:4 Hawkeye, Luna, Astrael, Dorian, Cullen
Gargoyle: Cloudjumper and Toothless