Wood can be found naturally in freshwaters all over the world, and many fish have adapted to live near to it, breed on it and even feed on it. Place some wood in your aquarium and it can instantly give that natural look, and combine lots of wood with a bed of fine sand and your tank will resemble a stream in the Amazon.

Bogwood is just wood from fallen branches and tree trunks. It would float initially, but over time it takes on water, becomes water-logged and sinks. Once underwater it’s used by many catfish species to hide under during the day, many of them mimicking the wood pattern and shapes as part of their camouflage.lace it in the tank and it should sink, but some may float for several days before sinking. If you need it to sink immediately use cable ties to fasten large rocks underneath it. Place it back in the water and it should sink. If it still floats, you need heavier rocks.