Shrimp comparison
Crystal Red Shrimp vs Sulawesi Cardinal Shrimp
How the Crystal Red Shrimp and Sulawesi Cardinal Shrimp compare on care, size, water and temperament, and which shrimp suits your tank.
By Mike ElmiraUpdated
TL;DR, Crystal Red Shrimp vs Sulawesi Cardinal Shrimp
The Crystal Red Shrimp and the Sulawesi Cardinal Shrimp are close cousins, both in the Caridina group, so at a glance they ask for a lot of the same things. Their ideal water doesn't line up cleanly, so you'd be nudging conditions to favour one over the other. The Crystal Red Shrimp is the more forgiving of the two, which matters if this is an early tank, while the Sulawesi Cardinal Shrimp rewards a bit more attention. Read the full care notes on each below and pick the one whose look and pace fit the tank you're building.
Group compatibility overview
Major conflicts
These species shouldn't share a tank, drop the outliers.
2 conflicts · 1 note
Temperature
- Crystal Red Shrimp20–24 °C
- Sulawesi Cardinal Shrimp26–30 °C
pH
- Crystal Red Shrimp5.8–6.8
- Sulawesi Cardinal Shrimp7.5–8.5
Hardness
- Crystal Red Shrimp3–6 dGH
- Sulawesi Cardinal Shrimp6–12 dGH
What to plan for
- Temperature mismatchAt least one species in this tank wants a temperature range that doesn't overlap the others. Pick species that share a temperature window, or remove the outlier.
- pH mismatchThe selected species' pH ranges don't overlap. Some prefer soft acidic blackwater, others alkaline, one tank can't serve both.
- Demanding species presentCrystal Red Shrimp, Sulawesi Cardinal Shrimp are difficulty 4+. Stable parameters and weekly maintenance are non-negotiable.
Full attributes
Every parameter, side by side| Parameter |  ShrimpCrystal Red ShrimpCaridina cantonensis 'CRS' |  ShrimpSulawesi Cardinal ShrimpCaridina dennerli |
|---|---|---|
| Category | Shrimp | Shrimp |
| Origin | Selectively bred from Hong Kong wild stock | Lake Matano, Sulawesi (Indonesia) |
| Temperature | 20–24 °C | 26–30 °C |
| pH | 5.8–6.8 | 7.5–8.5 |
| Hardness (dGH) | 3–6 | 6–12 |
| Flow rate | Low | Low |
| Min tank | 30 L | 40 L |
| Adult size | 2.5–3 cm | 1.5–2 cm |
| Difficulty | 4 / 5 | 5 / 5 |
| Lifespan | 1.5 yrs | 1–1.5 yrs |
| Diet | Omnivore / detritivore | Omnivore / detritivore (biofilm-focused) |
| Plant safe | Yes | Yes |
Frequently asked questions
Direct answers to the questions search engines and AI assistants surface most often about this species.
Can you keep Crystal Red Shrimp and Sulawesi Cardinal Shrimp together?
You can, but their preferred water doesn't overlap neatly, so you'd be settling on a compromise that suits one better than the other. If you want both, aim for the middle of each range and watch how they settle in.
Which is easier to keep, the Crystal Red Shrimp or the Sulawesi Cardinal Shrimp?
The Crystal Red Shrimp is the easier of the two, closer to demanding, while the Sulawesi Cardinal Shrimp leans expert-level.
Do Crystal Red Shrimp and Sulawesi Cardinal Shrimp need the same water?
Not quite. Their ranges only brush against each other, so check the side-by-side table above before you commit to one tank for both.
What's the main difference between the Crystal Red Shrimp and the Sulawesi Cardinal Shrimp?
It comes down to look, size and pace rather than one being flatly better. The table above lays the numbers out row by row.