Right now I have a very small piece of what I think is African Driftwood for my Royal Pleco. I want to purchase a larger size to center piece the tank. My questions is does the type matter? I want to get a nice piece off of E-bay because it's much cheaper than a retailer, I'll be buying off of RockArt. Mostly I see Malaysian Driftwood piece, would my pleco thrive off this or does he need a specific type?