Keeping vampire shrimp: deliver food to the shelter

The vampire shrimp, Atya gabonensis, has fans that filter food particles from water. Its large build and striking name do not make it a predatory shrimp. Arrange the aquarium so even an animal spending much of its time in a shelter can reach food in moving water.

Current and shelter belong together

Research on A. gabonensis fans shows how their fine structure functions in current. This does not fit the idea that these animals require only still or weakly moving water. The experimental velocity is not an aquarium pump recipe, however.

Provide securely placed cavities and openings with room for the adult animal. Direct part of the flow along accessible entrances, with calmer places alongside. Observe where the animal actually settles before changing the whole layout. Do not pull it from shelter just to make feeding visible.

Check the food route

A small portion of fine food needs to reach the fans before disappearing into the filter or an inaccessible area. Observe this at the occupied shelter. Use more than one feeding place if animals obstruct each other. Sinking tablets in an open area alone do not guarantee access.

A Benue field study found algae, diatoms, insect parts and detritus among stomach contents. This does not establish a complete diet from one powder or justify dirty aquarium water. Target food and follow water quality; do not routinely squeeze large amounts of old filter waste into the tank as food.

If visibility is limited, observe deliberately

• Look at quiet times for fanning at an accessible location.
• Follow changes in condition and activity and check whether tank mates disturb the shelter.
• With sudden change, also check temperature, filter operation, oxygen provision, ammonia and nitrite.
• Improve an observed poor food route rather than blindly increasing powder.

The feeding guide helps coordinate food and maintenance. Hiding does not automatically mean illness, but a prolonged lack of observations does not prove that care is working.

Sources and scope

• Liao and colleagues (2023): High stability in filtration apparatus of African shrimp
• Obande and Kusemiju: Food and feeding habits of Atya gabonensis
• Marijke Puts, The Shrimp Farm: Vampire shrimp care
• UF/IFAS: Dissolved Oxygen for Fish Production

The biomechanics study observes Atya gabonensis fans; the field study describes stomach contents. Neither supplies a complete aquarium diet. The husbandry source supports shelter and targeted food, not intentionally polluting water.