Choosing rocks for your fish tank

While some elements of a fish tank such as size, plants, or lights should be chosen based on the species of fish, the type of rocks in your fish tank can be whatever your heart desires. We recommend choosing rocks that fit the overall theme of your fish tank.

For instance, if you have a tropical style fish tank, it may look best with colorful pebbles to go along with all the other bright colors in the fish tank. We also love white rocks in fish tanks, as they give a upscale allure that makes your tank look like it was taken right our of the Florida Keys. White rocks will also go well with Egyptian fish tank decorations.

Here are a couple of our favorite types of white rocks for your fish tank.

White Rocks for Fish Tank

We often get asked what are the best white rocks for fish tanks. Here are our recommendations:

Nature’s Ocean Bio-Activ

This white rock/sand combo is 100% natural and taken directly from the ocean. The biggest advantage of these white rocks is that they already have live marine bacteria on them. This means that they will instantly adjust to the water chemistry of your tank, meaning you can add fish the same day you add these white rocks. Additionally, these bio active rocks help contain excess nitrogen helps keep your tank at a healthy pH level. You can purchase these white rocks for only $19.99.

GloFish Fluorescent Aquarium Gravel

The GloFish white aquarium rocks definitely takes the cake for the coolest rocks on the market. As the name suggests, these white rocks glow in the dark giving your fish tank an awesome exotic style. These rocks actually help save energy as you don’t need to keep your fish tank lights on at night since these white rocks light up the fish tank on their own. The best part about these rocks is that you can buy them for only $5.64.

Do you have to get certain pebbles for a saltwater aquarium

Technically, you do not have to get special rocks for a saltwater fish tank. However, there are some saltwater plants that grow better with certain types of rocks. For example, crushed shells are often chosen for fish tanks with coral because the shells usually grind into sand which is what coral naturally grows on in the ocean.