I've got two eating and two not - looks like 3M/1F and one of the ones not eating anything is the female. I've tried everything under the sun - live, frozen, bathed in garlic, etc. The two that aren't eating don't even look at the food, it's crazy. They are in with 6 barred silver dollars, a couple P. splendida and a Leporinus....so everyone else is eating everything.
As for the driftwood - got it at an LFS here in Dallas - got two that are awesome.