Good to know: sand is the best option for snails, crabs and fish that like to bury themselves.
Does your aquarium house freshwater invertebrates, cichlids or burrowing fish like Kuhli loaches?
So, we advise you to choose sand as a substrate!
Gravel is the most common type of aquarium substrate and is an ideal product for most freshwater aquariums.
The benefits of gravel Gravel is popular with freshwater aquarists for several reasons.
First, it's perfect for raising almost any freshwater fish and most invertebrates.
Gravel is also the ideal choice for growing aquatic plants, as it allows the roots to absorb nutrients from the water flowing through the substrate.
Finally, it is easier to maintain a planted gravel aquarium than a sandy bottom aquarium.
The type of substrate depends a lot on your fish population and plant species.
But once you have chosen between gravel or sand, it will not necessarily be easy to retrace your steps.
A population of fish, accustomed to a substrate, will not easily accept changes.
To avoid any problems, choose the substrate that best suits the fish and plants in your aquarium according to their type!