Neocaridina davidi (cherry shrimp) is the easiest hobby invertebrate to breed. A stable colony of 10-20 specimens grows to 100+ within 4-6 months without intervention. Once you understand the basic conditions, the colony breeds itself.
10-20 gallon planted tank with inert substrate, sponge filter, no copper-based equipment. Target TDS 200-300, GH 8-10, KH 3-6, pH 7.0-7.8, temperature 70-76°F.
Mix of males and females. Males are smaller and slimmer; females are larger with a saddle (visible egg sac on the back) and broader tail underside.
Bee Shrimp Foods (Mosura, Shirakura, Bacter AE), blanched zucchini or spinach. Overfeeding causes bacterial blooms that crash colonies. Only feed what they consume in 2-3 hours.
A "berried" female carries 20-30 eggs under her tail for 3-4 weeks. Eggs are visible as a yellow or green cluster. Hatchlings are tiny replicas of adults - no larval stage like marine shrimp.
Java moss, Christmas moss, or Riccia provides cover for hatchlings during their first 1-2 weeks. Adult shrimp don't typically prey on their young, but having cover reduces juvenile stress.
Once the colony exceeds 50+ specimens, remove the lowest-color individuals (light pink, transparent) and keep only the most intensely colored. Over 3-4 generations the colony shifts dramatically toward the desired color profile.
Recommendations on this page cross-checked against the following authoritative references and our internal vendor + breeder database.
Whatever specific topic brought you here, four fundamentals govern long-term aquarium success: water quality, parameter stability, biological filtration, and species-appropriate husbandry. Skip any one and the others struggle to compensate.
Water quality: ammonia + nitrite at zero, nitrate under 30 ppm freshwater + 10 ppm reef. Test weekly with API or Salifert kits. Use our water parameter checker to score your readings against your tank type.
Parameter stability: stable wrong parameters beat fluctuating ideal parameters. Most fish tolerate a wide pH range if it's stable. Sudden swings of 0.4+ pH or 5+°F kill fish faster than chronic suboptimal values. Use temperature controllers (Inkbird) + automated dosing for consistency.
Biological filtration: the bacterial colony on your filter media + rock + substrate is the engine. Never replace all media at once. Use our filter turnover calculator to size correctly.
Species-appropriate husbandry: research adult size, territoriality, diet, and tankmate compatibility before purchase. Use our tank stocking calculator + compatibility guides.
How long does an aquarium take to set up? 4-6 weeks for full cycling + first stocking. Use our cycle ETA calculator + how long does cycling take.
What's the best aquarium for beginners? 20-gallon long. Big enough for parameter stability, small enough for budget + space. See beginner picks.
How often should I do water changes? 25-30% weekly. See water change frequency Q&A + water change calculator.
Why does my fish keep dying? 5 leading causes: uncycled tank, wrong species pairings, no quarantine, undersized tank, neglected water-change schedule. See full diagnosis.
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