Can Bee Shrimp (Crystal Red / Black) and Blind Cave Tetra Live Together?

Reviewed by Guidarium Editorial DeskUpdated April 28, 2026
Not Recommended

Bee Shrimp (Crystal Red / Black) and Blind Cave Tetra are not recommended as tank mates due to incompatible hardness ranges. Housing these species together is likely to result in stress, health problems, or direct harm to one or both fish.


At a Glance

Bee Shrimp (Crystal Red / Black)

Caridina cantonensis

Blind Cave Tetra

Astyanax mexicanus

🐠Family Group
Bee Shrimp (Crystal Red / Black)
Invertebrates
Blind Cave Tetra
Characins
Temperament
Bee Shrimp (Crystal Red / Black)
Peaceful (0/10)
Blind Cave Tetra
Mostly Peaceful (4/10)
Temperature
✓ Compatible
Bee Shrimp (Crystal Red / Black)
18–24°C
Blind Cave Tetra
20–25°C
pH Range
✓ Compatible
Bee Shrimp (Crystal Red / Black)
5.5–6.8
Blind Cave Tetra
6.5–8
Hardness (dGH)
✗ No overlap
Bee Shrimp (Crystal Red / Black)
3–6
Blind Cave Tetra
8–20
Water Type
✓ Compatible
Bee Shrimp (Crystal Red / Black)
Freshwater Only
Blind Cave Tetra
Freshwater Only
Flow Preference
✓ Compatible
Bee Shrimp (Crystal Red / Black)
Low
Blind Cave Tetra
Moderate
Min Tank Volume
Combined: 110 L
Bee Shrimp (Crystal Red / Black)
19 L
Blind Cave Tetra
110 L
Swimming Level
Shared: 2 zones
Bee Shrimp (Crystal Red / Black)
BottomMiddle
Blind Cave Tetra
MiddleBottom
🏷️Behavior Tags
Bee Shrimp (Crystal Red / Black)
Nano / Bite-sized (Predation Risk)Shy / Slow Moving (Easily Stressed)Hyperactive / Fast Swimmer
Blind Cave Tetra
Hyperactive / Fast SwimmerFin NipperAggressive Eater (Starves shy fish)
Stocking calculator

Can your tank handle Bee Shrimp (Crystal Red / Black) and Blind Cave Tetra?

Compatibility is only part of the answer. Test both fish with your real tank size, current stock, and maintenance needs to see if you have enough space and a safe stocking level before you add them.

Bee Shrimp (Crystal Red / Black)
Blind Cave Tetra
Test both in my tank

Behaviour & Temperament

Bee Shrimp (Crystal Red / Black) is a peaceful species (0/10), while Blind Cave Tetra is generally mild-mannered (4/10). This notable difference means Blind Cave Tetra may occasionally assert dominance over Bee Shrimp (Crystal Red / Black).

Bee Shrimp (Crystal Red / Black) and Blind Cave Tetra both frequent the Bottom (Substrate) and Middle (Open Water) region of the setup. This overlap can increase competition for space, so providing ample room and cover is important to keep both species comfortable.

Additional behavioural considerations to keep in mind: Hyperactive swimmers can stress shy, slow-moving species through constant motion. Aggressive eaters may outcompete shy fish for food, leading to malnutrition.

Water Parameters

The safe temperature window for both species falls between 20°C and 24°C. Aim for the midpoint of this range (around 22.0°C) for optimal comfort.

Both fish can tolerate a pH between 6.5 and 6.8. Maintaining a stable value within this band is more important than hitting an exact number.

Hardness requirements are incompatible: Bee Shrimp (Crystal Red / Black) needs 3–6 dGH while Blind Cave Tetra requires 8–20 dGH.

Tank Setup

To house Bee Shrimp (Crystal Red / Black) and Blind Cave Tetra together, plan for an aquarium of at least 110 litres with a minimum length of 80 cm. This recommendation combines the stricter species minimums with a community-load allowance so the pairing has realistic long-term space and filtration headroom.

Providing a mix of open swimming space and sheltered areas with rocks, driftwood, or plants will keep both species comfortable and allow natural behaviour.

Specific environmental needs for this combination include: Soil / Nutrient Rich, Plants - Densely covered, Driftwood (Digestion/Hiding), Leaf Litter/Blackwater, Established Algae (Otocinclus), Smooth Gravel (Sensitive Barbels). Meeting these requirements will help both species thrive.

Note a potential conflict in setup requirements: Bee Shrimp (Crystal Red / Black) requires Soil / Nutrient Rich, while Blind Cave Tetra requires Smooth Gravel (Sensitive Barbels). These substrate types may be difficult to provide simultaneously. Compromise where possible or prioritise the more critical need.

Both species do well with low (still water) water movement, so a standard filtration setup rated for the tank volume should suffice.

Why This Pairing Usually Fails in Practice

Bee Shrimp (Crystal Red / Black) and Blind Cave Tetra are the kind of pair that can look acceptable in a shop but become a maintenance problem at home. The main risk is not a single number in the chart; it is the way incompatible behavior, water needs, or pressure on space compounds over time once both fish are established in the same tank.

Suitable Tank Sizes

Standard aquarium sizes large enough for both Bee Shrimp (Crystal Red / Black) and Blind Cave Tetra.

Show 12 more tank sizes

Diet & Feeding

Feeding time deserves special attention with this pairing. Blind Cave Tetra is an aggressive eater that may prevent Bee Shrimp (Crystal Red / Black) from getting enough food.

Because Blind Cave Tetra is a fast, competitive feeder, consider using sinking pellets or feeding at opposite ends of the setup to ensure Bee Shrimp (Crystal Red / Black) receives an adequate share.

Frequently Asked Questions

Can Bee Shrimp (Crystal Red / Black) and Blind Cave Tetra live together?

No. This combination is not recommended. Key incompatibilities — such as critical behavioural conflicts — make cohabitation unsafe.

What size tank do Bee Shrimp (Crystal Red / Black) and Blind Cave Tetra need?

A minimum of 110 litres (tank length at least 80 cm) is recommended. This provides enough space for both species to establish their own areas and reduces the likelihood of territorial disputes.

What water temperature is best for Bee Shrimp (Crystal Red / Black) and Blind Cave Tetra together?

Keep the aquarium between 20°C and 24°C. A target of around 22.0°C sits comfortably within both species' preferred ranges.

Are Bee Shrimp (Crystal Red / Black) or Blind Cave Tetra aggressive?

Bee Shrimp (Crystal Red / Black) is peaceful (0/10) and Blind Cave Tetra is generally mild-mannered (4/10). The gap in aggression levels means the calmer fish may experience stress from the more assertive one.

What pH do Bee Shrimp (Crystal Red / Black) and Blind Cave Tetra need?

Both species overlap in the 6.5–6.8 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.

Will Blind Cave Tetra nip Bee Shrimp (Crystal Red / Black)'s fins?

Blind Cave Tetra is a known fin nipper. If Bee Shrimp (Crystal Red / Black) has long or flowing fins, there is a real risk of fin damage. Keeping Blind Cave Tetra in a larger group can help redirect nipping behaviour toward conspecifics.

Editorial Review

Guidarium Editorial Desk

Reviewed against Guidarium care, stocking, and compatibility standards. Read the editorial policy.

Last reviewed
April 28, 2026
Last updated
April 28, 2026
Issues or corrections?
Contact the editorial team

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