Can You Use Lava Rock in Fish Tank

Lava rocks can be a great addition to your fish aquarium if you are looking to decorate your aquarium. There are some common questions about Lava rocks, like:

Can you use lava rock in fish tank? Are lava rocks safe for an aquarium? Where to find the lava rocks? And many more.

The simple and easy answer is yes, you can use lava rocks in an aquarium, and also they are safe for aquarium.

Before adding lava rocks to your aquarium, you should read this article. It will give a better understanding of lava rocks for aquarium.

Lava rocks do not only give a decorative look to an aquarium, but they also have some beneficial effects on your aquarium.

Some bacteria that grow on the lava rocks will remove nitrates in your aquarium.

In this article, you will learn How to prepare lava rock for aquarium and lava rock aquarium benefits.

Let’s begin.

Before Buying Any Lava Rocks, Keep This In Mind

Before you buy any lava rocks, there are some important things you should keep in mind.

Don’t purchase lava rocks with too many sharp or pointy edges. If you put pointy or sharp lava rocks in your aquarium, your fish can injure themselves.

Not just only sharp edges lava rocks, you should avoid any sharp object for aquarium decoration. You can put whatever size you want in your aquarium. Just don’t put any sharp objects in the aquarium.

While buying lava rocks, you should check if there is any dust on the lava rocks. You should not purchase dusty lava rock for your aquarium.

Having lava rocks in your aquarium not just only adds good looks to your aquarium they also improve water clarity.

Dusty lava rocks can create problems while cleaning them. Properly clean the lava rocks before you put them in the aquarium.

How To Clean Lava Rocks For An Aquarium

After purchasing the lava rocks, you can’t simply put them into the aquarium. Those rocks may contain some bacteria that can be harmful to your fish.

Before putting lava rocks, should clean the rocks properly. You can use running and brush to clean the rocks. You are also going to need a bucket.

Make sure that the bucket is sterilized; there should not be any form of bacteria on the bucket.

Here is the dedicated guide on How to clean the rocks for an aquarium?

Here are some steps to clean the rocks for your aquarium:

Wash The Lava Rocks

Fill the bucket with tap water and put the rocks into the bucket. Now scrub the rocks thoroughly with a brush. After scrubbing, sometimes the color of the water will change to orange or red.

Don’t panic. This is normal, and this is meant to happen. Just remove the colored water from the bucket and pour the clean water into the bucket. Do this, again and again, to get somewhat clean water.

If rocks have any sharp edges, you can remove them, rubbing sharp edges with other lava rocks. After cleaning, keep them in the sunlight to dry up.

Boil The Lava Rocks

After removing the dust or dirt on the lava rocks, the next stage should be disinfecting the rock. If you disinfect them perfectly, then there should be no harmful substance that can harm your fish or plants.

The best way to disinfect is to boil the rocks. But boiling has its risks. You should carefully boil them. We don’t want you to get hurt while doing the boiling process, so proceed with precautions.

While boiling the rocks, they intend to explode. There are many cases around this. But if you carefully boil them, they will not explode.

You will need a big container and a lid to cover the container. Don’t use a pressure cooker for this boiling.

Put the rocks first into the container and then put the water into the bucket. Pour the water until all the rocks are fully submerged. And also, check that rocks don’t have any bubbles in them.

If there is any bubble of air into the rocks, they will surely break or explode. Don’t boil them for any more than 30 minutes.

Don’t put the hot rocks in your aquarium. First, cool them down and wipe all the excess water from the rocks or dry them under the sunlight.

Bleaching The Lava Rocks

You can also use a bleach solution to disinfect the lava rocks. Boiling is the most effective way to disinfect the rocks. But if you don’t like the boiling method, you can also use the bleaching solution.

If you have a big rock that can not be boiled, you can use the method.

Make a bleaching solution in a bucket. The bleaching agent and water ratio should be 1:10. Then put the rocks in the bucket for 24 hours.

After 24 hours, remove them from the bucket and wash them and then put them into the aquarium.

How To Prepare Your Aquarium For Lava Rocks?

Before you add any rocks to the aquarium, you need to adjust something in your aquarium.

Make sure that your aquarium bottom has a flat surface. This means that the weight of your rocks will be divided equally across the whole tank.

If you put rocks into a bareback tank made with glass or acrylic. There is some chance that the glass or acrylic will get some scratches.

You can use a thick sand or gravel layer to prevent that from happening.

Lava Rocks For Aquarium Filter

You can use the lava rocks as your biological media in your filter. Biological filter media can be so much expensive, but lava rocks aren’t that much expensive.

Lava rocks can be a great addition to any non-live planted aquarium. There will be no nitrates consuming plants in that aquarium.

Lava rocks can help to reduce the nitrates in your aquarium.

Benefit Of Using Lava Rock In Aquarium

Some great benefits come with lava rocks in an aquarium:

Provides Caves And Shelter

If you have small fishes, they will love the cave and hiding places provided by the rocks. Large rocks are even better since they will only provide more hiding places for your fish.

Hold Plants

The rocks can be a great addition to plant anchoring. Lava rocks will help your aquarium plants to hold them down.

Better Water Quality

Lava rocks can help your aquarium clean the water. They contain elements that can cause your water to be clearer.

Hey, I am Shuvradeb Biswas a content writer. Fishkeeping is my hobby. There are many problems I faced during my first fishkeeping. So, I made the blog to help new fishkeepers.

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