How To Get Driftwood To Sink

Are you new to using driftwoods in a fish tank? Do you know it might not be appropriate to leave your driftwood floating around the tank? So, how do you get your driftwood to sink?

Sinking your driftwood might require specific creative techniques. You can hold down the driftwood between some heavy substrates in the tank or tie some weight. You can also glue it down or entangle it with some plants. 

It is crucial to figure out why the driftwood is not sinking in the first place. Boiling the wood is also an excellent way to get it to sink. This method drives out the water that increases the wood’s buoyancy.

Why Is My Driftwood Not Sinking?

Driftwood will not sink because of its massive buoyancy. Buoyancy refers to the upward force from the water that keeps a material floating. The driftwood will only sink when its weight is more than this upward force.

Some of these driftwoods have air trapped between them. The air is responsible for their lightweight regardless of the size. Consequently, the upward force will be greater than the weight.

So, it would be best if you found a way to keep the air out of the wood or hold it down to prevent it from sinking. You can also find a way to increase the weight of the driftwood. With time, it will get saturated and acquire enough weight to stay down.

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Does Boiling Driftwood Make It Sink?

Of course, boiling is one of the best methods of sinking driftwood. Boiling drives the trapped air out of driftwood and ensures that it get waterlogged. This water logging will increase the wood’s weight and help it to sink.

Another advantage of boiling is that it helps to sanitize the driftwood. It will keep it free from bacteria and harmful fungi spores. It will also kill other harmful parasites that might be hanging around the driftwood.

However, boiling driftwood will leach tannins and discolor the water. This reaction can be dangerous to most of the tank members.

It is best to boil the driftwood for about 30 minutes to 2 hours. If the length of the wood is too long for a single boil, you can turn it over and boil it again for the set period. So, you would use double the time for preparation.

After the suitable boiling time, transfer the driftwood into a container filled with water. This transfer will help the driftwood cool, and you can also confirm if it will sink in the tank. You can also weigh down boiled driftwood to help it stay at the base of your tank.

How Do You Get Driftwood to Stay Down?

Getting your driftwood to stay down in the tank is essential. Thankfully, there are several ways to achieve this with little or no hassle. Some of the best ways to get driftwood to stay down include;

1. Wedge the driftwood in the middle of heavy substrates

Wedging your driftwood in the middle of heavy substrates like rocks will hold it down. It will offer it enough support and weight to prevent it from floating. This method is suitable when you already have heavy substrates in your tank.

One of the benefits of this method is flexibility. You don’t have to introduce any new material into the tank, and you can easily rearrange it.

2. Tie the driftwood to a heavy metal

Another method is tying the driftwood to heavy metal. The weight of the metal will be sufficient to keep the driftwood down and prevent it from floating. You can tie the metal to the driftwood using a fishing line.

However, note that you can only use a corrosion-free material like stainless steel. This caution is to prevent the metal from contaminating the tank. Some stores usually sell the driftwoods already attached to a corrosion-free metal.

3. Entangle the driftwoods in plants

This method is suitable for those that have enough plans in their tanks. It leverages the firmness of the plant to keep the driftwood down. Ensure that you have plants that are strong enough to anchor the wood.

This method happens naturally in ponds and rivers. Plants will trap and hold driftwood beneath the water and prevent it from floating. You can look out for the samples in the wild and replicate them in your tank.

4. Use suitable aquarium glue.

Using suitable aquarium glue to hold the driftwood to heavy materials. You can also use it to hold the wood to various points within the tank. The glue will keep everything in place and prevent it from floating.

However, the use of glue is not the best method, especially in freshwater tanks. Besides, using glue will only work for a small wood piece. Superglue might not effectively hold down larger driftwoods.

How Do You Get Wood to Sink in A Fish Tank?

The only way you can get a wood to sink is by increasing its weight by keeping it soaked. This weight must be more than the upward force of the water to prevent it from floating. Several methods can help you get driftwood to sink.

Boiling is one of the best methods of getting your wood to sink. It drives out the trapped air that makes the wood lighter than the upward force. Consequently, boiling the driftwood will get it waterlogged by replacing the trapped air with water.

Another method is to hold the driftwood down in the tank. After a while, the driftwood will get waterlogged, which increases its weight. Once this weight is high enough, the wood will sink without any extra aid.


Driftwoods give your aquarium one of the most enhanced looks. It is pretty easy to place driftwood in the tank using any of the techniques above. While doing this, ensure that you keep the safety of your fish in mind.

Use suitable methods to sink and hold the drift down at the bottom of the tank. You can sink the wood by boiling it until it becomes waterlogged.