Red Cherry Shrimp

The Red Cherry Shrimp (Neocaridina davidi) is the world's hardiest and most popular freshwater dwarf shrimp for nano tanks and planted aquascapes starting from 10 liters. Working 24/7 as a gentle micro-scavenger, it polishes mosses, plant leaves, and driftwood free of biofilm, soft algae, and leftover food without harming healthy foliage. Females grow larger and display deeper crimson coloration (Sakura, Fire Red, and Painted Fire grades).

The key to thriving Neocaridina davidi colonies is osmotic stability and zero copper (Cu) exposure. Ideal target range: TDS 150–220 ppm, GH 6–10 °dGH, KH 2–5 °dKH, and temperature 20–24 °C. Insufficient calcium and magnesium (GH < 4) causes failed molts and the fatal 'white ring of death', while large, sudden water changes with mismatched TDS trigger osmotic shock and premature molting. Always run a shrimp-safe air-driven sponge filter (or stainless mesh intake guard) and provide ceramic shelter tubes plus dense Java moss where newly molted soft-shelled shrimp can hide safely.

Omnivorous biofilm grazer and scavenger. In a seasoned planted tank, natural biofilm, soft green algae, and decomposing Indian almond (Catappa) leaves provide 70% of their daily nutrition. Supplement 2–3 times a week with mineral-rich sinking shrimp pellets, spirulina wafers, blanched spinach, zucchini, or stinging nettle leaves. Remove uneaten vegetables after 3–4 hours to keep nitrates low.

Breeding in freshwater is effortless because Neocaridina have direct development with no planktonic larval stage. Mature females develop a yellow 'saddle' of unfertilized eggs behind the head. Upon molting, she releases pheromones, mates, and transfers 20–35 fertilized eggs under her swimmerets (pleopods), fanning them for 21–30 days until miniature 1.5 mm shrimplets hatch and immediately graze on biofilm over mosses and sponge filters.