Red Onyx Shrimp

The Red Onyx shrimp (Neocaridina davidi ‘Red Onyx’) is a captivating and relatively new variation of the backstripe shrimp (Neocaridina davidi). Its deep maroon to dark brown coloration resembles that of a rich, almost chocolatey red tone. Under good lighting, you can appreciate its deep shimmering wine-red hue, while in lower light conditions, it appears almost black. Here’s what you need to know about these stunning shrimps:

1. Appearance:

   • The Red Onyx shrimp grows to around 1.5 inches in size.
   • Females are larger and more intensely colored than males.
   • The line is still being stabilized by breeders, so not all offspring will exhibit the same spectacular coloration as their parents.

2. Aquarium Setup:

   • A 5+ gallon aquarium is suitable for beginners, while 10+ gallons are recommended for stability.
   • Ensure your tank is fully cycled, has a filter, and possibly a heater if ambient temperatures fluctuate.
   • Provide hiding places using rocks, driftwood, and live plants.
   • Use a dark substrate to enhance their colors.
   • Good lighting allows you to appreciate their full beauty.

3. Water Parameters:

   • Neocaridina shrimp are not too demanding:
     • Ammonia and nitrites must be 0 at all times.
     • Nitrates should preferably be <10.
     • Avoid copper-based medications, as they are toxic to shrimp.
     • Regular small water changes help maintain water quality.

4. Diet:

   • Red Onyx shrimp are omnivorous.
   • Feed them a balanced diet of high-quality shrimp pellets, algae wafers, blanched vegetables, and occasional treats like bloodworms.

5. Tankmates:

   • Keep them with peaceful tankmates like other Neocaridina shrimp, small fish, or snails.
   • Avoid aggressive or predatory species.

6. Availability:

   • Red Onyx shrimp are still relatively rare, but their popularity is growing due to their striking appearance.