One of my favorite inverts to keep is Atya gabonensis, which are commonly known as the Viper Shrimp or the Vampire Shrimp. This captivating species originates from West Africa. Despite some of its ominous-sounding monikers, this peaceful filter feeder only adds grace and beauty to freshwater aquariums. With a maximum size of 6 inches and a lifespan of up to 5 years, Atya gabonensis is an intriguing addition for aquarists seeking an easily manageable and unique aquatic companion.
Notice The Fan-Like Appendages
Also referred to as the African Fan Shrimp and the African Filter Shrimp, the Atya gabonensis boasts a diverse range of colors, from creamy white to deep blue or almost rusty brown. The species is known for its ability to change colors multiple times in a year, with water conditions playing a significant role in this fascinating transformation. As omnivores, Vampire Shrimp will consume anything floating in the water that they can catch in their fan-like appendages. To support their filter-feeding habits, a well-established tank is ideal. Additionally you may want to supplement their diet with finely ground fish food or spirulina powder and spot-feed them. In my experience, if you observe any bottom-patrolling behavior, it’s a good sign that there is insufficient food intake and adjustments to feeding routines may be necessary.
Vampire shrimp hiding in a overturned shrimp hut after molting.
African Fan Shrimps thrive in community tanks with ample hiding spaces, which become especially important during molting. They are non-aggressive, making them suitable for shared habitats. These filter feeders prefer high water flow areas, often positioning themselves near filters. To recreate their natural habitat, maintain a moderate to strong water current in the tank, and ensure there are spots where the shrimp can catch food effortlessly.
One of the most remarkable features of these shrimp to me is their compatibility with other freshwater shrimp species, such as neocaridina and caridina dwarf shrimp. They also exhibit social behavior, making them comfortable sharing their aquatic space with not only each other but also other filter shrimp — particularly, in my experience, Bamboo Shrimp.
I guess up-close they can look a bit creepy
A large temperature range of 75–83°F and a pH level between 6.5 and 7.8 make these inverts very versatile. I currently have 3 in a 75-gallon housing Geophagus, Rainbows, and Electric Blue Acara, and also in the store in tanks with many different dwarf shrimp species.
In conclusion, the Atya gabonensis, or African Fan Shrimp, stands out as a captivating addition to freshwater aquariums. Its graceful appearance, compatibility with other shrimp species, and relatively easy care level make it an appealing choice for both novice and experienced aquarists. Their peaceful demeanor and feeding dances make them an interesting addition to any community tank for many years to come!
A large adult hanging onto a 6 inch fish net.
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