Spider wood is the aqua scapers choice when it comes to hard scape. Releases very little tannin. The wood generally floats for around 2 weeks. A white fungus develops on the wood which is caused from the remaining sugars in the wood but this dissipates after a month to 6 weeks. It is best to presoak your spider wood before putting it in the aquarium with livestock. Sizes and shapes do vary.
Spider Wood Small