Whisker Shrimp

The Whisker Shrimp, scientifically known as Macrobrachium sp., belongs to the Invertebrates family group. Adults reach a maximum size of approximately 7.5 cm and have a compressed body shape with a fast growth rate. Classified as aggressive, this species primarily occupies the bottom and mid-level zones of the aquarium and produces a low level of biological waste.

To thrive, the Whisker Shrimp requires a freshwater only aquarium with a minimum volume of 38 litres and a tank length of at least 45 cm. Water temperature should be maintained between 20°C and 28°C, with a pH range of 7–8 and a general hardness of 5–15 dGH. A moderate water flow is preferred.

Due to its specialist needs, the Whisker Shrimp is best suited for fishkeepers who can provide a carefully planned setup. The Whisker Shrimp is typically available in one standard form.

When setting up an aquarium for the Whisker Shrimp, a moderate water flow best suits their natural preferences. Because this species occupies the bottom and mid-level zones, the aquarium layout should prioritise open swimming space in the centre of the tank for free movement and sufficient floor space with hiding spots among rocks, wood, or dense planting. Useful additions include dense planting to provide cover, break sightlines, and reduce stress.

Classified as aggressive, the Whisker Shrimp is adaptable and can be kept singly or in a small group, offering flexibility when planning a community tank. When choosing tankmates, avoid housing with slow-moving or long-finned species that may become targets for fin nipping and ornamental shrimp are not safe companions. Selecting tankmates that favour different water layers from the bottom and mid-level zones can help reduce competition and territorial overlap.

Whisker Shrimp is best for a fishkeeper who expects a species with attitude and plans the tank around that behavior and can provide someone who understands its individual space requirements. It makes the most sense for a hobbyist who will actually build around its needs, especially plants.

The most common mistake is buying Whisker Shrimp for looks first and only later discovering how its adult size, behavior, or bioload changes the whole tank plan. Another frequent problem is forcing it into an over-busy community when it would do better with more room or more deliberate tankmate choices.

The Whisker Shrimp will hunt and eat ornamental shrimp, making it unsuitable for shrimp-focused setups, will eat fry, so breeding efforts in the same tank are unlikely to succeed, and is primarily active at dusk and dawn, so offering food shortly after lights-off ensures it receives adequate nutrition.