Tiger Shrimp Care Guide - Setup, Feeding & Breeding

Tiger Shrimp are small freshwater shrimp named for the dark transverse bars that cross their translucent body. Their base colour can range from clear or pale amber to yellowish, with the contrasting stripes varying from brown to deep black depending on the individual and line. Selectively bred forms may show stronger colour and more dramatic patterning than wild-type examples.

Like many Caridina, they are peaceful, busy invertebrates that spend much of their time walking over hard surfaces with their delicate legs and picking at microscopic food. Their fan-like mouthparts and tiny chelae are adapted for scraping and gathering edible films rather than catching prey.

In nature, these shrimp inhabit flowing Taiwanese waters, where smooth stones, leaf litter, woody debris and aquatic growth provide both food and shelter. Their small size allows them to explore narrow crevices and dense cover that larger aquatic animals cannot reach.

Tiger Shrimp are a popular choice for planted aquariums and specialist shrimp displays because their patterned bodies stand out against dark substrate and green plants. They are generally more sensitive to poor water quality and abrupt changes than the hardier Neocaridina varieties, making them especially rewarding in a mature, stable aquarium.

Tiger Shrimp, Caridina mariae, are native to Taiwan in East Asia. They occur in clear, cool freshwater streams and adjoining shallow habitats, where they graze on algae, biofilm and organic material among stones, leaf litter and submerged vegetation.

A group of Tiger Shrimp can be kept in an established aquarium of at least 20 litres, with a footprint around 30 x 20 cm or larger. Use gentle filtration, ideally with a sponge filter or a protected intake, and provide stable, well-oxygenated freshwater with low to moderate mineral content. Fine inert or shrimp-safe active substrate, mosses, fine-leaved plants, driftwood, smooth stones, leaf litter and small crevices create grazing areas and refuge for shrimplets. Avoid copper-based medications, untreated metals and major fluctuations in temperature or water chemistry.

Adult Tiger Shrimp reach approximately 2.5–3 cm (1–1.2 in) in total length. Females are usually larger and more robust than males, with females sometimes approaching 3 cm (1.2 in), while males commonly remain closer to 2–2.5 cm (0.8–1 in).

Tiger Shrimp spend much of the day grazing on algae, biofilm and microorganisms growing on plants, wood, stones and other surfaces. Supplement this natural grazing with small portions of quality shrimp pellets or wafers containing appropriate plant matter and minerals, along with occasional blanched vegetables such as spinach, courgette or broccoli. Remove uneaten food promptly, and avoid relying on rich, high-protein foods as a staple.

Tiger Shrimp do best in a peaceful species aquarium or with very small, non-predatory tankmates. Suitable companions include adult Otocinclus, small rasboras such as chili rasboras, peaceful small tetras, freshwater snails and other gentle nano fish, although even tiny fish may eat newly hatched shrimplets. Avoid large or boisterous fish, cichlids, bettas, loaches and most predatory catfish. They may also interbreed with some closely related Caridina varieties, so separate breeding colonies are advisable when maintaining a particular line.

Tiger Shrimp breed readily when mature females are kept in stable, clean freshwater with plenty of biofilm and hiding places. After mating, the female carries a clutch of eggs beneath her abdomen for around three to four weeks, fanning them regularly. The eggs hatch into fully formed miniature shrimplets that graze immediately on biofilm and fine foods. Avoid sudden changes in water chemistry, and use a sponge pre-filter so young shrimp are not drawn into the intake.

Females are generally larger, broader through the abdomen and more rounded underneath, providing space for carrying eggs. Males are smaller and slimmer, often with a straighter abdominal profile; females may also show a visible saddle or eggs when mature.