Can Bee Shrimp (Crystal Red / Black) and Blue Back Blue Eye Live Together?

Reviewed by Guidarium Editorial DeskUpdated May 2, 2026
Not Recommended

Bee Shrimp (Crystal Red / Black) and Blue Back Blue Eye are not recommended as tank mates due to incompatible water types and conflicting pH requirements and 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

Blue Back Blue Eye

Pseudomugil cyanodorsalis

🐠Family Group
Bee Shrimp (Crystal Red / Black)
Invertebrates
Blue Back Blue Eye
Rainbowfish
Temperament
Bee Shrimp (Crystal Red / Black)
Peaceful (0/10)
Blue Back Blue Eye
Peaceful (2/10)
Temperature
✓ Compatible
Bee Shrimp (Crystal Red / Black)
18–24°C
Blue Back Blue Eye
22–30°C
pH Range
✗ No overlap
Bee Shrimp (Crystal Red / Black)
5.5–6.8
Blue Back Blue Eye
7–8.5
Hardness (dGH)
✗ No overlap
Bee Shrimp (Crystal Red / Black)
3–6
Blue Back Blue Eye
10–30
Water Type
✗ No overlap
Bee Shrimp (Crystal Red / Black)
Freshwater Only
Blue Back Blue Eye
Brackish Required
Flow Preference
✓ Compatible
Bee Shrimp (Crystal Red / Black)
Low
Blue Back Blue Eye
Moderate
Min Tank Volume
Combined: 38 L
Bee Shrimp (Crystal Red / Black)
19 L
Blue Back Blue Eye
38 L
Swimming Level
Shared: 1 zone
Bee Shrimp (Crystal Red / Black)
BottomMiddle
Blue Back Blue Eye
TopMiddle
🏷️Behavior Tags
Bee Shrimp (Crystal Red / Black)
Nano / Bite-sized (Predation Risk)Shy / Slow Moving (Easily Stressed)Hyperactive / Fast Swimmer
Blue Back Blue Eye
Nano / Bite-sized (Predation Risk)Jumper (Lid Required)Hyperactive / Fast SwimmerFry Predator
Stocking calculator

Can your tank handle Bee Shrimp (Crystal Red / Black) and Blue Back Blue Eye?

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)
Blue Back Blue Eye
Test both in my tank

Behaviour & Temperament

Bee Shrimp (Crystal Red / Black) is a peaceful species (0/10), while Blue Back Blue Eye is peaceful (2/10). This modest difference means Blue Back Blue Eye may occasionally assert dominance over Bee Shrimp (Crystal Red / Black).

Bee Shrimp (Crystal Red / Black) and Blue Back Blue Eye both frequent the 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.

Worth noting: Blue Back Blue Eye is a known jumper, so a tight-fitting lid is essential.

Water Parameters

The safe temperature window for both species falls between 22°C and 24°C. Aim for the midpoint of this range (around 23.0°C) for optimal comfort.

The pH requirements of Bee Shrimp (Crystal Red / Black) (5.5–6.8) and Blue Back Blue Eye (7–8.5) do not overlap, making it impossible to satisfy both species simultaneously.

Hardness requirements are incompatible: Bee Shrimp (Crystal Red / Black) needs 3–6 dGH while Blue Back Blue Eye requires 10–30 dGH.

Crucially, these species require different water types — one needs freshwater while the other requires brackish conditions. This is a hard barrier to keeping them together.

Tank Setup

To house Bee Shrimp (Crystal Red / Black) and Blue Back Blue Eye together, plan for an aquarium of at least 38 litres with a minimum length of 45 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), Sand (Sifters). 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 Blue Back Blue Eye requires Sand (Sifters). 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 Blue Back Blue Eye 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 Blue Back Blue Eye.

Show 22 more tank sizes

Frequently Asked Questions

Can Bee Shrimp (Crystal Red / Black) and Blue Back Blue Eye live together?

No. This combination is not recommended. Key incompatibilities — such as different water type needs — make cohabitation unsafe.

What size tank do Bee Shrimp (Crystal Red / Black) and Blue Back Blue Eye need?

A minimum of 38 litres (tank length at least 45 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 Blue Back Blue Eye together?

Keep the aquarium between 22°C and 24°C. A target of around 23.0°C sits comfortably within both species' preferred ranges.

Are Bee Shrimp (Crystal Red / Black) or Blue Back Blue Eye aggressive?

Bee Shrimp (Crystal Red / Black) is peaceful (0/10) and Blue Back Blue Eye is peaceful (2/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Bee Shrimp (Crystal Red / Black) and Blue Back Blue Eye need?

Their pH requirements do not overlap. Bee Shrimp (Crystal Red / Black) prefers 5.5–6.8, while Blue Back Blue Eye needs 7–8.5. This makes them incompatible in the same water chemistry.

Editorial Review

Guidarium Editorial Desk

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

Last reviewed
May 2, 2026
Last updated
May 2, 2026
Issues or corrections?
Contact the editorial team

Related Comparisons

Bee Shrimp (Crystal Red / Black) & Apple Snail

·

Not Recommended
Bee Shrimp (Crystal Red / Black): PeacefulApple Snail: Peaceful

Bee Shrimp (Crystal Red / Black) & Bladder Snail (Pest Snail)

·

Possible with Caution
Bee Shrimp (Crystal Red / Black): PeacefulBladder Snail (Pest Snail): Peaceful

Bee Shrimp (Crystal Red / Black) & Blue Pearl Shrimp

·

Possible with Caution
Bee Shrimp (Crystal Red / Black): PeacefulBlue Pearl Shrimp: Peaceful

Bee Shrimp (Crystal Red / Black) & Brown Camo Shrimp

·

Possible with Caution
Bee Shrimp (Crystal Red / Black): PeacefulBrown Camo Shrimp: Peaceful

Bee Shrimp (Crystal Red / Black) & Cherry Shrimp

·

Possible with Caution
Bee Shrimp (Crystal Red / Black): PeacefulCherry Shrimp: Peaceful

Bee Shrimp (Crystal Red / Black) & Malaya Shrimp

·

Possible with Caution
Bee Shrimp (Crystal Red / Black): PeacefulMalaya Shrimp: Peaceful

Blue Back Blue Eye & Ajamaru Rainbowfish

·

Not Recommended
Blue Back Blue Eye: PeacefulAjamaru Rainbowfish: Peaceful

Blue Back Blue Eye & Allen's Rainbowfish

·

Not Recommended
Blue Back Blue Eye: PeacefulAllen's Rainbowfish: Peaceful

Blue Back Blue Eye & Angfa Rainbowfish

·

Not Recommended
Blue Back Blue Eye: PeacefulAngfa Rainbowfish: Peaceful

Blue Back Blue Eye & Axelrod's Rainbowfish

·

Not Recommended
Blue Back Blue Eye: PeacefulAxelrod's Rainbowfish: Peaceful

Blue Back Blue Eye & Barred Rainbowfish

·

Not Recommended
Blue Back Blue Eye: PeacefulBarred Rainbowfish: Peaceful

Blue Back Blue Eye & Batanta Rainbowfish

·

Not Recommended
Blue Back Blue Eye: PeacefulBatanta Rainbowfish: Peaceful