Driftwood can leech tannins which can cause a slight yellow or brown tint to your water. This is natural and the effects will reduce over time. Boiling the wood prior to use can decrease the tannins that leech into your aquuarium.
Spider Wood will float initially if it is not boiled and/or weighed down, but usually sinks within a few days.
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17x12x10 (L x W x H Inches)