Quick answer

To sink aquarium driftwood, first cure it by boiling or soaking to remove tannins and saturate the wood. Then weigh it down with rocks or slate until it becomes waterlogged, which can take one to four weeks. For a hassle-free alternative, resin driftwood sinks immediately and releases no tannins.

Why curing matters before you sink driftwood

Curing removes excess tannins, kills potential pests, and saturates the wood so it sinks. Skipping this step can lead to floating wood, stained water, and unhappy fish. Natural driftwood like Malaysian driftwood often leaches tannins for weeks, while resin options avoid this entirely. Understanding the wood type helps you choose the right preparation method.

Choosing the right driftwood for your tank

Natural driftwood adds organic texture and provides grazing surfaces for shrimp and plecos. However, it requires patience. Resin driftwood offers a low-maintenance alternative that won't alter water chemistry. Consider your tank size and desired look: large pieces like the Extra Large Resin Malaysian Driftwood make a bold statement without the wait, while mixed accent roots allow detailed scaping.

Step-by-step: Preparing and sinking aquarium driftwood

  1. 1. Inspect and clean the driftwood: Rinse the wood under warm water to remove loose debris. Use a soft brush to scrub away dirt. Avoid soap or chemicals. Checkpoint: If the wood has soft spots or a foul smell, it may be rotting—do not use it.
  2. 2. Boil or soak to remove tannins: Boil smaller pieces for 1–2 hours, changing water until it runs clear. For large pieces, soak in a bucket of dechlorinated water for 1–4 weeks, changing water daily until tannins are minimal. Common mistake: Skipping this step leads to dark water and pH swings. Boiling also kills pests.
  3. 3. Test buoyancy and weigh down: Place the wood in your tank. If it floats, attach it to slate or rocks using aquarium-safe silicone or zip ties. Alternatively, wedge it under decor. Checkpoint: Wood may take 1–4 weeks to become waterlogged. Be patient.
  4. 4. Monitor water parameters and adjust: After adding wood, test pH and hardness weekly. Tannins may lower pH slightly. Perform water changes if you notice excessive staining or if fish show stress. Common mistake: Overlooking pH drops in small tanks. Use resin driftwood if you want zero impact.

Product facts

  • Mixed Driftwood Aquascaping Accent Roots: Mixed Driftwood Aquascaping Accent Roots offer a diverse selection of shapes and thicknesses, ideal for creating intricate root arches or bonsai tree designs. These roots are perfect for detailed aquascapes, but because they are natural wood, they will need curing and may float initially.
  • Extra Large Resin Malaysian Driftwood: Extra Large Resin Malaysian Driftwood is hand-painted, made from 100% aquatic safe resins, and will not release tannins, lower pH, or produce biofilm. This is a hassle-free option that sinks immediately and requires no curing, though it must be shipped by sea due to size.
  • Large Kurrajong Pods (15 Pack): Large Kurrajong Pods (15 Pack) are botanicals that add visual appeal and create hideaways for smaller fish and shrimp, but they are native to Australia and not suitable for biotopes specific to other regions. These pods can complement driftwood in blackwater setups, but they also release tannins, so plan your water changes accordingly.