What do aquarium shrimp eat? Start with how they feed

Many commonly kept dwarf shrimp find food on surfaces: algae, microorganisms, organic material and accessible added food. “They eat algae” is therefore not a complete feeding plan. Nor do all aquarium shrimp feed the same way: fan shrimp capture particles from moving water.

Three forms of food provision

• Colonised surfaces: may supply food, but composition and available quantity cannot be read from a coating. See biofilm.
• Formulated food: read its purpose, ingredients, analysis and instructions. A product labelled complete food serves a different role from one ingredient or a water additive. See food comparison.
• Additions such as suitable vegetables and leaves: count them in both provision and loading. They do not automatically complete an inadequate plan.

Caridina is not one feeding recipe

Bee/Taiwan Bee, Amano and Cardinal do not all belong in one care approach despite sharing the name Caridina. A soft-water bee aquarium needs appropriate water management, but this alone establishes no scientifically justified smaller ration for every Caridina. Assess composition, life stage, access and loading.

Feeding without unnecessary pollution means accountable additions and leftover management, not feeding as little as possible. Use product instructions and observations to adjust portions. Colony growth or juveniles may require different provision; sudden food refusal warrants investigation of water and health.

For adult Neocaridina, use the feeding routine. See separate approaches for Amano, Cardinal from Sulawesi and fan shrimp. These examples do not establish identical needs for every species in a genus or from an island.

Sources and scope

• UF/IFAS: Cherry shrimp, Neocaridina davidi
• Dennerle: Shrimp King Complete product declaration
• Aqueon: Freshwater shrimp, bamboo-shrimp feeding
• Garnelenhaus: Sulawesi-Kardinalsgarnele
• UF/IFAS: Ammonia in Aquatic Systems

Sources describe grazing, a product declaration and specific Cardinal and Atyopsis examples. This overview supplies no universal nutrient percentage or feeding frequency. Practical choices must fit the identified animals.