Opae Ula, also called Hawaiian red shrimp, are tiny, bright red shrimp native to anchialine pools in Hawaii. They’re famous for being extremely hardy and long-lived — often 15–20+ years with proper care. They’re low maintenance, but they do have very specific environmental needs.

Opae Ula are brackish water shrimp, not freshwater.

• Salinity: 1.010–1.015 specific gravity
  (Use marine salt mix, not table salt or freshwater aquarium salt.)

• pH: 7.5–8.5

• Temperature: 65–80°F (18–27°C)
  Room temperature is usually fine.

• Water type: Distilled or RO water mixed with marine salt

• No sudden changes — they dislike rapid shifts.