Microvarium - Small Habitat Specialists
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Nautilus Light


A natural look, inspired by the Malawi Lake in Africa and the karst streams of Bonito, Brazil.


Nautilus Light is a carefully crafted Riverbed inspired by the natural habitats of waterbodies around the world as the Malawi Lake in Africa or the karst streams of Bonito, Brazil. It is composed of pale sands and crus shells, plus a mix of small, medium, and large shells that provide a natural and realistic look for your aquarium.

Lake Malawi is a breathtakingly beautiful body of water located in East Africa. It is renowned for its crystal-clear waters, vibrant array of cichlid fish, and stunning underwater landscapes. The lake’s underwater world is a mesmerizing tapestry of colors and shapes, filled with a diverse array of aquatic plants, rock formations, and sandy substrates.

Our Nautilus Light Riverbed was inspired by the underwater world of Lake Malawi, featuring a blend of light-colored sands and crushed shells that mimic the sandy substrate found in the lake. This Riverbed creates a natural and realistic look in your aquarium and is perfect for recreating the unique environment of Lake Malawi, where many fishes use shells as shelters and to build nests. It can be combined with our enrichment line Shell Shelter Normal and XL.

The karst streams of Bonito, Brazil are known for their crystal-clear waters and unique underwater landscape. These streams run through limestone formations, creating a maze of underwater caves, crevices, and tunnels that are home to a variety of aquatic species.

The rocks and limestone formations in the streams create a natural habitat for snails, shrimps, and other invertebrates that thrive in this environment. The water in these streams is also rich in minerals, providing a healthy environment for plants and animals.

Our Nautilus Light Riverbed is inspired by this unique underwater landscape, featuring a mix of light sand, crushed shells, and gravels that create a natural and realistic look for your aquarium or terrarium. The bed is ideal for creating biotopes of karst streams, African cichlids and other aquatic environments, and can benefit fishes and invertebrates that thrive in such habitats.

Nautilus Light is available in bags of 2kg and 5kg, and the size mix ranges from 0.1cm to 5cm. The substrate is suitable for any type of aquarium or terrarium design and provides a unique and natural touch to your aquatic environment.

Made with 100% natural materials, Nautilus Light is a non-toxic choice for your aquarium decor. It does affect water hardness and is easy to manipulate and spread in your aquarium.

  • Color: Whitish, pale-yellow to cream.
  • Material: Pale sands, crush shells and white-colored shells mix.
  • Size mix: 1-50mm.
  • Materials: Non-toxic and all natural sands and shells.
  • Water hardness: Does affect water hardness.
  • Packing: Available in 2 & 5kg bags
  • Inspired by the Lake Malawi and the karst streams of Bonito, Brazil,
  • Pale sands and a mix of small, medium, and large shells.
  • Non-toxic and 100% natural material.
  • Does affect water hardness.
  • Easy to manipulate and spread in your aquarium.
  • Perfect match to use with our enrichment line Shell Shelter Normal and XL.
  • Can be used in both aquatic and terrarium environments, as a standalone substrate or mix with other sands, gravels, or Riverbeds
  • Pre-washed for your convenience, can be use without rinse.
  • You can gently pass a net over the water surface to remove any floating particles.
  • The arbitrary distribution of the bag content creates a natural Riverbed impression with random densities and content mix, resulting in an easy, fun, and impressive way to create a true slice of nature.
  • These Riverbeds are suitable for everyone, from the newbie to the professional nature creator, and can be used to achieve outstanding results.
  • You don’t need any special skills or tools to manipulate and spread the Riverbed in your aquarium or terrarium, making it an accessible and non-invasive way to enhance the natural look of your aquatic or terrestrial environment.
  • Riverbeds are made from 100% natural and non-toxic materials.
  • Safe for fish, shrimps, and other aquatic animals.


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Shipping Delay Notice

No orders will be shipped between March 30 and April 20, 2023 due to warehouse improvements, changes, and upgrades. Any order placed during that time will be fulfilled during the week of April 24-28.

This does not apply to merchandise which will continue shipping as normal.