Ideal water parameters
| Parameter | Target range |
|---|---|
| Temperature | 68-78°F |
| pH | 6.5-8.0 |
| GH (general hardness) | 6-8 dGH |
| KH (carbonate hardness) | 2-4 dKH |
| Ammonia / Nitrite | 0 ppm |
| Nitrate | Under 20 ppm |
Neocaridina are more forgiving of parameter swings than Caridina (Crystal/Bee) shrimp, which is why they're the standard beginner recommendation. That said, "forgiving" doesn't mean indestructible — sudden swings from large, cold water changes are still a leading cause of stress and death.
Tank setup basics
A mature, planted tank with a sponge filter (no fish-tank-strength intake that could pull in shrimplets) is the standard setup. Live plants and biofilm give shrimp a constant grazing surface and shelter for molting shrimp, which are vulnerable to predation for the first day or two after a molt.
Molting: what's normal and what's not
Shrimp molt regularly as they grow, leaving behind a translucent, shrimp-shaped shell that's easy to mistake for a dead shrimp. A healthy molt looks like an empty, intact shell with the shrimp visible and active nearby.
Good tank mates (and what to avoid)
- Good: small rasboras and tetras kept in numbers, otocinclus, nerite snails, other peaceful shrimp species
- Risky: most larger tetras, barbs, and gouramis — will eat shrimplets even if they leave adults alone
- Avoid: bettas (individually variable but a common cause of shrimp colony collapse), cichlids, larger loaches
Common mistakes
The most common Neocaridina mistake is adding them to an uncycled or newly cycled tank — shrimp are noticeably more sensitive to ammonia and nitrite than most fish. The second is using any copper-based medication or fertilizer in a shrimp tank, since copper is highly toxic to all invertebrates even at doses labeled safe for fish. The third is overfeeding, since uneaten food fouls water quality faster in a low-bioload shrimp tank than people expect.
Frequently asked questions
What water parameters do Neocaridina shrimp need?
Neocaridina shrimp do best in GH 6-8, KH 2-4, pH 6.5-8, and temperatures of 68-78°F. They are more tolerant of parameter swings than Caridina shrimp, but stability still matters more than hitting an exact number.
Can Neocaridina shrimp live with fish?
Yes, but choose small, peaceful species that won't eat shrimp or shrimplets, such as small rasboras, otocinclus, or nerite snails. Avoid bettas, larger tetras, and most cichlids.
Why did my shrimp turn white or die after molting?
A white, cloudy appearance after molting usually means a failed molt caused by unstable water parameters or a mineral (calcium/GH) deficiency. Keep GH stable and consider a mineral supplement if it happens repeatedly.
How many Neocaridina shrimp can I keep per gallon?
A common starting guideline is 5-10 shrimp per gallon in a mature, planted tank, though a heavily planted tank with strong biofilm can support more. Start conservatively and let the colony grow naturally.
Do Neocaridina shrimp need a fully cycled tank?
Yes. Shrimp are more sensitive to ammonia and nitrite than most fish, so add them only after the tank is fully cycled and has been running stable for at least a few weeks.