all my wood is manzanita. very hard and lasts like forever. I ordered from manzanita.com. they have pics of thier stumps with prices. for branches you tell them what lenth and diameter. shipping is reasonable. my pieces are all at least 30". I put them in a 40 gal. trash can and soak them for 2 or 3 weeks, changing the water every few days. when they sink, just rinse them and put them in the tank.