Compatibility Overview
Cherry Shrimp and Koi are generally not recommended to be housed together. The issues listed above — whether water parameter incompatibility, predation risk, or aggression — create conditions where one or both fish are likely to suffer harm or chronic stress.
| Factor | Cherry Shrimp | Koi | Verdict |
|---|---|---|---|
| Temperature | 65–80°F | 50–75°F | ✅ 65–75°F |
| pH Range | 6.5–8.0 | 7.0–8.5 | ✅ 7.0–8.0 |
| Temperament | peaceful | peaceful | ✅ Compatible |
| Adult Size | 0.8 in | 24 in | ❌ 30× difference |
| Min. Group | 10+ | 2+ | See below |
| Min. Tank Size | 100 gallons (for both species) | — | |
✅ Compatibility Positives
❌ Incompatibility Reasons
Species Profiles
Cherry Shrimp — Neocaridina davidi
Bright red freshwater shrimp that are excellent algae cleaners. Very small — at risk from any fish large enough to eat them.
→ Full Cherry Shrimp care guide
Koi — Cyprinus rubrofuscus
Large pond fish that require hundreds of gallons and cool water. Will eat any fish small enough to fit in their mouth.
Frequently Asked Questions
Can Cherry Shrimp live with Koi?
Generally not recommended. Cherry Shrimp and Koi are generally not recommended to be housed together. The issues listed above — whether water parameter incompatibility, predation risk, or aggression — create conditions where one or both fish are likely to suffer harm or chronic stress.
What tank size do I need for Cherry Shrimp and Koi together?
A minimum of 100 gallons is recommended for keeping Cherry Shrimp and Koi together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Cherry Shrimp and Koi?
65–75°F
Is a Cherry Shrimp aggressive toward a Koi?
Cherry Shrimp is peaceful and Koi is peaceful. Cherry Shrimp requires tropical water; Koi requires cold water. These environments are incompatible.