My last sohal also the same problem. Pecked on the bamboo dun eat other food. After 2-3 weeks up lorry. Current one with me for 4 weeks. Eats like a pig till today. I picked this fish when it first arrived. Immediately tried feeding(Common practice by most reefers). Then I introduced it in my tank with my Kole, Blue, Yellow and purple tang. Thank God all the fishes get along well. Only worry it my PBT, now in QT. not sure will be wrecked by the sohal if introduce to the tank. keeping my fingers cross.