Lava Rock For Aquariums (Is It Safe & How To Prepare It)

If you’re wondering whether you can keep lava rock in your aquarium, then you’ve found the right article! In this article, not only will you learn how safe lava rock is for an aquarium, but you’ll also learn how to prepare it and the benefits you can expect from adding it to your tank!

So keep reading to find out everything you need to know!

Is Lava Rock Good For Aquariums?

Yes, lava rock is a great choice for aquariums. This type of rock has so many beneficial properties that make it amazing for aquariums, like its ability as natural filter media, provide hiding places for fish, and help beneficial bacteria grow!

How To Prepare Lava Rock For Aquariums

Before you add lava rock to your aquarium, you’ll need to prepare it! With that in mind, here are the steps you’ll need to take!

Wash The Lava Rock

Washing lava rock is an important step in preparing it for use in an aquarium. Lava rock can often be covered in dirt and other debris, so it’s important to clean it thoroughly before adding it to your tank.

Boil The Lava Rock

Boiling lava rock is another important step in preparing it for use in an aquarium. This will help kill any bacteria or other organisms that may be present on the rock.

Bleach The Lava Rock

Bleaching lava rock is another important step in preparing it for use in an aquarium. This will help remove any unwanted substances that may be present on the rock.

To bleach your lava rock, you should make up a solution of 1 part bleach for every 20 parts water. Once you’ve done this, let the lava rock soak for 24 hours. Once it’s done soaking, rinse it repeatedly with water to ensure all the bleach has been removed.

Then finally, rinse it with dechlorinated water to remove any chemicals from the tap water, which may be on the lava rock.

Place Your Lava Rock

Finally, you’ll want to place the lava rock in a safe place after cleaning and bleaching it. When you’re looking for somewhere to place it, you want to make sure it’s not going to tip or fall if the tank is moved too much.

You should also decide whether you want it to be a forefront decoration or something that sits in the background.

Macro photo of red volcanic lava stones.

Benefits Of Lava Rock In An Aquarium

Lower Nitrate Levels

The porous nature of lava rock is perfect for trapping nitrates. Nitrates are a byproduct of fish waste and can build up to dangerous levels if not removed. The beneficial bacteria which will grow in your Lava rock will consume these nitrates, keeping your aquarium water clean and healthy for your fish.

Provide Hiding Places For Fish

Lava rock has plenty of hiding places for fish, as it comes in many shapes and sizes. This is great for fish who like to hide or feel secure when swimming around the aquarium.

Acts As A Natural Filter Media

Lava rock can also act as a natural filter media. The porous nature of lava rock makes it perfect for trapping dirt, debris, and other particles from the water. This helps keep your tank clean and healthy for your fish.

Another benefit is that the beneficial bacteria which will grow in your Lava rock will help improve water quality. This is because they consume pollutants and other substances that can harm fish, helping keep the water clean and healthy for your aquarium inhabitants.

Provides Places For Some Aquarium Plants To Latch Onto

The porous nature of the lava rock also provides plenty of places for aquarium plants to latch onto. This makes it great for aquascaping and other types of aquarium design.

Is Lava Rock Safe For Fish?

Yes, lava rock is a safe option for fish tanks as long as you take steps to properly clean and prepare it before adding it to the tank. Cleaning it with boiling water and, if necessary, bleaching it will help ensure that all unwanted substances are removed so your fish will be safe.

FAQ

Here are some frequently asked questions that people have about adding Lava rock to their fish tanks!

Is Lava Rock Good For Aquarium Filters?

Yes, it can be used as a filter media in aquariums. It helps to trap debris and dirt, helping keep the water clean and healthy for your fish.

Is Lava Rock Good For Aquarium Substrates?

Yes, lava rock can be used as a substrate in aquariums. Its porous nature makes it perfect for trapping dirt and debris, helping keep the water clean and healthy for your fish. Plus, depending on the color of the lava rock, it can make your tank look even more impressive!

Do Aquarium Snails Like Lava Rock?

Yes, aquarium snails do like lava rock! They can hide in and around the Lava rock and will also eat the algae that grow on it. This makes it a great addition to any tank with snails or other invertebrates.

Is Black Lava Rock Safe for Aquariums?

Yes, black lava rock is safe for aquariums as long as it has been properly cleaned and prepared before adding it to the tank. This will help ensure that all unwanted substances are removed so your fish will be safe.

Can You Use Lava Rock As A Biological Filter?

Yes, lava rock can be used as a biological filter in aquariums. The porous nature of the lava rock makes it perfect for trapping dirt, debris, and other particles from the water and also provides plenty of places for beneficial bacteria to grow. However, it is still no substitute for an actual biological filter.

Does Lava Rock Raise Ph?

No, while lava rock can help buffer the pH of the water, it does not raise it. If you need to raise the pH of your aquarium, you should use a product specifically designed for this purpose.

Is Lava Rock Toxic To Fish?

No, lava rock is not toxic to fish as long as it has been properly cleaned and prepared before adding it to your tank.

Should I Boil Lava Rock Before Adding It To My Fish Tank?

Yes. Boiling the lava rock is an important step in preparing it for use in an aquarium. This will help kill any bacteria or other organisms that may be present on the rock.

Can I Bleach Lava Rock?

Yes, you can bleach lava rock to help remove unwanted substances that may be present on the rock.

To do this, make up a solution of 1 part bleach for every 20 parts water and let the lava rock soak for 24 hours.

Then rinse it repeatedly with water to ensure all the bleach has been removed, and finally, rinse it with dechlorinated water before adding it to your tank.

Conclusion

Lava rock is a great addition to any aquarium and can provide lots of benefits for your fish, including lowering nitrate levels, providing hiding places for fish and invertebrates, and helping to keep the water clean.

Just make sure you take the time to properly clean and prepare it before adding it to your tank!

Whether you’re looking for a natural-looking substrate or just need something to provide extra filtration in your tank, lava rock is an ideal choice.

Happy Fish Keeping!