How to Weigh Down Driftwood in an Aquarium

There are many ways to weigh down driftwood in an aquarium, but you need to be mindful of the balance between your tank water and the weight of the driftwood. This is because if there’s too much weight on one side, it can affect how much oxygen bubbles up from that side and into your fish’s habitat.

How to Weigh Down Driftwood in an Aquarium

One way to weigh down driftwood in a freshwater or saltwater aquarium is with rocks or gravel! You can also use sand as an option for those who do not want any other debris in their tank. In this article, we’ll explore how to weigh down driftwood in an aquarium.

Step to Follow on How to Weigh Down Driftwood in an Aquarium

Step One: Get Your Driftwood

Ignore the fact that this is an obvious step. Get your driftwood. How you come across it isn’t important, but you will want to do something with it before you put it in the tank, so think ahead about where you would like it to go and what level of the tank you want it at.

Get Your Driftwood

If this is your first time with driftwood in a planted tank, I recommend getting a large piece that will allow you to have a prominent portion of it protruding from the aquarium. This is because driftwood can be a bit rough to work with, and having such a large piece will allow you to get used to it.

Step Two: Prepare Your Tank.

The next step is to prepare the aquarium itself. If you have not done so already, empty the tank, and set it up on some old towels. This will make for an easier clean-up later on. Next, take your piece of driftwood; it’s good to have all this done before you put it in the tank so the water doesn’t ruin your work area.

Then, clean the driftwood. You will want to get all of the loose debris off, and you can do this by lightly scrubbing it with a sponge or some soft-bristled brush. Then, get a small bucket, fill it halfway with water, and add a capful of bleach or something similar to kill any algae that might have called onto the wood.

Step Three: Weigh It Down.

For this step, you will need several objects that can be tied onto the driftwood to weigh it down. The best items for this are rocks because they have a high weight-to-size ratio and won’t be eaten by your fish. You might also use plastic plants or other small objects with a low weight-to-size ratio, but use rocks since you want the driftwood to be really heavy.

Place a rock on each end of your driftwood. If the wood is big enough that it extends from the surface of the water higher than where your tank’s lid would rest, then put one or two rocks higher up on the wood to weigh it down. You can also place rocks on top of other rocks if you need to, but try not to stack them more than two high.

Step Four: Get Another Small Bucket.

You will need to get another small bucket that is filled with some tank water and some de-chlorinator. Do not use sand or gravel from your aquarium for this, as when they get wet, they will take a while to dry. The water from your aquarium should be ok because it has been sitting, waiting for you to clean it out.

Get Another Small Bucket

Your bucket of tank water should contain a capful of de-chlorinator, which helps to remove any chlorine or chloramines from the tap water. Use about half as much as you would use for a full bucket of water. These steps should help you in learning how to weigh down driftwood in an aquarium.

Step Five: Put the Driftwood in

Carefully place your driftwood into the tank, and let it rest on the rocks that you put there earlier. Make sure that all of the pieces of driftwood, or at least most of them, can support themselves and won’t fall over. This helps keep your aquarium strong and helps to avoid accidents like your driftwood falling into your aquarium and breaking the glass.

Once you have done this, add some of the tank water from your bucket to weigh it down even more. Then use a net to get more tank water from around where your driftwood is resting, and carefully pour it over the driftwood until everything is submerged in the tank.

Step Six: Place Any Remaining Rocks or De-chlorinator

After you have poured the tank water over your driftwood, place any remaining rocks and de-chlorinator along where the pieces of wood are resting. This will help to keep them from floating back up to the surface. If they do end up getting pushed up, it is not a huge problem.

Just push them back down and slowly pour more water over them until the driftwood is heavy enough to stay down. If this happens more than two or three times, you might want to try tying some fishing line around the driftwood and hooking it onto a decorative rock so that it cannot move very easily.

Step Seven: Wait

The hardest step is to wait the full amount of time required for your driftwood to soak up water and become fully saturated. This can range from a few days to a couple of weeks if your piece of driftwood is substantial. After this, you will want to keep replacing the water that gets absorbed by your driftwood as it evaporates.

However, you will need to use a net to get the water from your aquarium and replace it with this bucket of tank water. If you pour straight tap water over your driftwood when everything is submerged underwater, then much of that chlorine and chloramines will come back into the aquarium and kill any plants or animals in there.

Step Eight: Maintain

As your driftwood absorbs water, it will also fill up with nutrients that will help to support the life in your aquarium. However, you still need to do the usual maintenance of replacing any lost water and ensuring that there are no more rocks or de-chlorinator left inside the tank.

This helps both for appearances’ sake and to make sure that you are not poisoning the fish living in your tank. This is not an issue if you have a sand substrate because sand can dry out without doing too much damage.  This will help in how to weigh down driftwood in an aquarium.

Step Nine: Enjoy!

Once your driftwood is finally in place, you can rest assured that it will not move or shift in any way, especially if the rocks are holding it down. Now you need to watch your aquarium’s life flourish. Every time you look at your tank, you will be able to enjoy the beauty and grace of your aquarium and all of the creatures in it.

You can check it to Disinfect Aquarium Nets



Driftwood is a great way to add natural beauty and interest to your aquarium. However, it may be difficult for you to find driftwood with the right weight or size for your tank. Luckily, there are a few ways that you can weigh down driftwood in an aquarium so that it will remain upright and easily visible while submerged underwater.

One of our favorite methods involves using gravel on top of the wood, which creates enough pressure from above water level. When placed underwater, this method provides excellent stability. We hope you enjoyed this article on how to weigh down driftwood in an aquarium.

You may also read it: How to Add Calcium to Freshwater Aquarium

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