Gabon shrimp (Atya gabonensis) – a giant with character
The Gabon shrimp (Atya gabonensis) is a true giant among aquarium shrimp. Its impressive size and often striking blue coloration draw the attention of aquarists. But there is another feature that stands out unusual, umbrella-like structures on the first two pairs of walking legs. These are specialized adaptations for filtering water to capture food. Learn how to care for this fascinating crustacean and, most importantly, what and how to feed it.
Habitat
Atya gabonensis inhabits the waters of West Africa, from Senegal to the Democratic Republic of Congo. It is a filter-feeding shrimp and, due to its feeding habits, prefers flowing waters.
Appearance and structure
The Gabon shrimp (Atya gabonensis) is most commonly associated with a vibrant blue coloration. In reality, individuals can vary from light blue, sky blue, and almost navy, to brown-blue, brown, and beige. These colors can change depending on various factors, including water parameters, the shrimp’s mood, the color of its surroundings, and the time before or after molting. Its body is massive, but its most distinctive feature is the feathery, umbrella-like structures on the first two pairs of walking legs, which are used to filter water. This large crustacean can grow up to 14–15 cm in length, often evoking reactions ranging from admiration to unease. Despite its somewhat intimidating appearance, it is a peaceful shrimp. However, due to its size, it can cause quite a stir in the aquarium.
Water parameters for Gabon shrimp
These crustaceans are relatively adaptable when it comes to water parameters. However, they do not tolerate sudden changes or unstable conditions. Avoid placing them in a newly established tank. Wait until the aquarium is mature. Like other crustaceans, Gabon shrimp are highly sensitive to toxic ammonia and nitrites, as well as elevated nitrate levels. Ensure the water is well-oxygenated and clean by installing an efficient filter and performing regular water changes.
Gabon shrimp thrive in temperatures between 23 and 26°C. The ideal water pH ranges from 6.5 to 7.5.
When you purchase a Gabon shrimp, be sure to acclimate it slowly to your aquarium’s conditions. How? After bringing the shrimp home, prepare a container and transfer the shrimp along with the water from the transport bag. Then, gradually add water from your aquarium to the container. Take your time, and keep an eye on the shrimp to prevent it from escaping. After about 30 – 40 minutes, you can transfer it to its final home using a net or your hand. Never pour the transport water into the aquarium.
What kind of aquarium for a Gabon shrimp?
Due to its size, the Gabon shrimp (Atya gabonensis) requires a large aquarium. Additionally, these shrimp feel more secure and behave more confidently when kept in a group. The absolute minimum is a 100 – 150 liter tank. However, since keeping several individuals is ideal, the aquarium should be significantly larger. Although peaceful, this shrimp may show aggression towards others of its kind, especially in tanks that are too small. Gabon shrimp can coexist with fish, provided they are small, peaceful species with similar water requirements.
To help Gabon shrimp feel at home, create a dedicated spot for them using roots or rocks positioned in the flow of the filter’s outflow. This is where they will open their umbrella-like limbs to filter food from the water. Provide plenty of hiding spots as well. The shrimp will use them when not feeding and during the molting process. As you may know, crustaceans must periodically shed their shells to grow. This process is exhausting, and before and after molting, shrimp seek quiet, secure places to rest.
Gabon shrimp and plants
Gabon shrimp do not damage plants, but… Because they are large and strong, they are not suitable for delicate, heavily planted aquariums. Any sudden movement or attempt to squeeze between decorations can result in uprooted plants and disturbed substrate. So you must choose – a lush planted scape or a Gabon shrimp.
What to feed Gabon shrimp?
The form of food is extremely important for Gabon shrimp. Their characteristic “umbrellas” are designed to catch small particles suspended in the water. Therefore, it’s essential to provide fine food that stays in suspension. Suitable options include finely crushed flake food, either multi-ingredient or plant-based, such as Tropical Spirulina Flakes, Tropical 3-Algae Flakes, or Tropical Supervit Mini Flakes. Powdered fry food is also excellent, for example: Tropical Micro-vit Spirulina, Tropical Micro-vit Vegetable, Tropical Micro-vit Basic, and Tropical Pro Defence Micro food with probiotics. Frozen foods like red plankton and cyclops are also appropriate. Feed small amounts of food directly into the water current. Avoid overfeeding, as leftover food can degrade water quality which shrimp are very sensitive to.
Breeding Gabon shrimp
Gabon shrimp do not breed in aquariums. While it’s not uncommon to see females carrying eggs, rearing the larvae is extremely difficult. This is because the larvae require saltwater to develop. The shrimp available in stores are wild-caught.
She studied environmental protection (specializing in surface water protection) at the Agricultural University of Wrocław (now the University of Life Sciences), where she later obtained her PhD at the Faculty of Biology and Animal Husbandry.
Her research focuses on the effects of diet, supplementation, and natural additives on the health, condition, and reproduction of aquarium fish.
In her free time, she cares for her fish and cats, tends to plants, enjoys hiking, and stays active through sports.
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