*Driftwood will float for 1-3 weeks until it becomes waterlogged. We recommend pre-soaking the wood until it sinks before using it in your aquarium. For the impatient scaper's, try attaching a flat rock to the base of the driftwood.
Minimal tannin will be released by spider wood and much less than others like Mopani and Malaysian driftwood . white film tends to develop. It is not harmful and will be eaten by some fish, all shrimp, and snails.
This is a natural product with some variation in the size and density of the pieces.