1 Branched Piece of Cholla Wood (5 inches+) - Aquarium Driftwood with Healthy pH-Buffering Tannins by Aquatic Arts This Cholla Wood is ready for aquarium use out of the box, though you may want to boil the wood first to remove excess tannins. Lowers and buffers pH - perfect for lowering pH gently and naturally. Produces ideal water conditions for acidic-loving animals. Great for planting plant buds and anchoring moss! All InvertObsession brand items (sold by Aquatic Arts) come with a 100% live arrival guarantee, plus free email support directly from the owners! This order includes 1 branched piece of driftwood that is at least 5 inches in length.