It's manzanita wood and it was originally a dark red color. After boiling it turned black. Is this normal? Does anyone know why it turned black or if it's still safe to use? I've got a lot of extra so if I have to toss it it's not a big deal. I had it in the aquarium for a few weeks before boiling it if that makes a difference. I added a picture of the boiled driftwood and the extra nonboiled wood to show the difference in color.