Can Bee Shrimp (Crystal Red / Black) and Electric Blue Johannii Live Together?

Reviewed by Guidarium Editorial DeskUpdated May 4, 2026
Not Recommended

Bee Shrimp (Crystal Red / Black) and Electric Blue Johannii are not recommended as tank mates due to 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

Electric Blue Johannii

Pseudotropheus johannii

🐠Family Group
Bee Shrimp (Crystal Red / Black)
Invertebrates
Electric Blue Johannii
Cichlids - African
Temperament
Bee Shrimp (Crystal Red / Black)
Peaceful (0/10)
Electric Blue Johannii
Aggressive (8/10)
Temperature
✓ Compatible
Bee Shrimp (Crystal Red / Black)
18–24°C
Electric Blue Johannii
24–28°C
pH Range
✗ No overlap
Bee Shrimp (Crystal Red / Black)
5.5–6.8
Electric Blue Johannii
7.8–8.6
Hardness (dGH)
✗ No overlap
Bee Shrimp (Crystal Red / Black)
3–6
Electric Blue Johannii
10–25
Water Type
✓ Compatible
Bee Shrimp (Crystal Red / Black)
Freshwater Only
Electric Blue Johannii
Freshwater Only
Flow Preference
✓ Compatible
Bee Shrimp (Crystal Red / Black)
Low
Electric Blue Johannii
Moderate
Min Tank Volume
Combined: 182 L
Bee Shrimp (Crystal Red / Black)
19 L
Electric Blue Johannii
150 L
Swimming Level
Shared: 2 zones
Bee Shrimp (Crystal Red / Black)
BottomMiddle
Electric Blue Johannii
MiddleBottom
🏷️Behavior Tags
Bee Shrimp (Crystal Red / Black)
Nano / Bite-sized (Predation Risk)Shy / Slow Moving (Easily Stressed)Hyperactive / Fast Swimmer
Electric Blue Johannii
Generally AggressiveAggressive to same species/look-alikesTerritorial (Defends specific area)Digger (Disturbs Substrate)Plant DestroyerHyperactive / Fast Swimmer
Stocking calculator

Can your tank handle Bee Shrimp (Crystal Red / Black) and Electric Blue Johannii?

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)
Electric Blue Johannii
Test both in my tank

Behaviour & Temperament

Bee Shrimp (Crystal Red / Black) is a peaceful species (0/10), while Electric Blue Johannii is semi-aggressive (8/10). This notable difference means Electric Blue Johannii may occasionally assert dominance over Bee Shrimp (Crystal Red / Black).

Large aggression gap (8 points) between Bee Shrimp (Crystal Red / Black) and Electric Blue Johannii increases stress risk for the more peaceful fish.

Bee Shrimp (Crystal Red / Black) and Electric Blue Johannii 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: Aggressive fish may bully and stress shy, slow-moving species. Hyperactive swimmers can stress shy, slow-moving species through constant motion.

Water Parameters

The safe temperature window for both species falls between 24°C and 24°C. Aim for the midpoint of this range (around 24.0°C) for optimal comfort.

The pH requirements of Bee Shrimp (Crystal Red / Black) (5.5–6.8) and Electric Blue Johannii (7.8–8.6) 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 Electric Blue Johannii requires 10–25 dGH.

Tank Setup

To house Bee Shrimp (Crystal Red / Black) and Electric Blue Johannii together, plan for an aquarium of at least 182 litres with a minimum length of 90 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 Electric Blue Johannii requires Sand (Sifters). These substrate types may be difficult to provide simultaneously. Electric Blue Johannii is a plant destroyer, which conflicts with Bee Shrimp (Crystal Red / Black)'s requirement for live plants. 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 Electric Blue Johannii 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 Electric Blue Johannii.

Show 7 more tank sizes

Frequently Asked Questions

Can Bee Shrimp (Crystal Red / Black) and Electric Blue Johannii 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 Electric Blue Johannii need?

A minimum of 182 litres (tank length at least 90 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 Electric Blue Johannii together?

Keep the aquarium between 24°C and 24°C. A target of around 24.0°C sits comfortably within both species' preferred ranges.

Are Bee Shrimp (Crystal Red / Black) or Electric Blue Johannii aggressive?

Bee Shrimp (Crystal Red / Black) is peaceful (0/10) and Electric Blue Johannii is semi-aggressive (8/10). 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 Electric Blue Johannii need?

Their pH requirements do not overlap. Bee Shrimp (Crystal Red / Black) prefers 5.5–6.8, while Electric Blue Johannii needs 7.8–8.6. This makes them incompatible in the same water chemistry.

How do I manage Electric Blue Johannii's territorial behaviour?

Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Electric Blue Johannii space to claim a territory without encroaching on the other fish's area. Adding décor that divides the tank into distinct zones works especially well.

Editorial Review

Guidarium Editorial Desk

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

Last reviewed
May 4, 2026
Last updated
May 4, 2026
Issues or corrections?
Contact the editorial team

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