Can Bee Shrimp (Crystal Red / Black) and Knight Goby Live Together?

Reviewed by Guidarium Editorial DeskUpdated April 28, 2026
Not Recommended

Bee Shrimp (Crystal Red / Black) and Knight Goby 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

Knight Goby

Stigmatogobius sadanundio

🐠Family Group
Bee Shrimp (Crystal Red / Black)
Invertebrates
Knight Goby
Gobies & Gudgeons
Temperament
Bee Shrimp (Crystal Red / Black)
Peaceful (0/10)
Knight Goby
Semi-Aggressive (6/10)
Temperature
✓ Compatible
Bee Shrimp (Crystal Red / Black)
18–24°C
Knight Goby
20–28°C
pH Range
✗ No overlap
Bee Shrimp (Crystal Red / Black)
5.5–6.8
Knight Goby
7–8.5
Hardness (dGH)
✗ No overlap
Bee Shrimp (Crystal Red / Black)
3–6
Knight Goby
10–30
Water Type
✓ Compatible
Bee Shrimp (Crystal Red / Black)
Freshwater Only
Knight Goby
Brackish Tolerant
Flow Preference
✓ Compatible
Bee Shrimp (Crystal Red / Black)
Low
Knight Goby
Moderate
Min Tank Volume
Combined: 75 L
Bee Shrimp (Crystal Red / Black)
19 L
Knight Goby
75 L
Swimming Level
Shared: 2 zones
Bee Shrimp (Crystal Red / Black)
BottomMiddle
Knight Goby
MiddleBottom
🏷️Behavior Tags
Bee Shrimp (Crystal Red / Black)
Nano / Bite-sized (Predation Risk)Shy / Slow Moving (Easily Stressed)Hyperactive / Fast Swimmer
Knight Goby
Fin NipperShrimp EaterFry PredatorTerritorial (Defends specific area)Digger (Disturbs Substrate)Aggressive to same species/look-alikes
Stocking calculator

Can your tank handle Bee Shrimp (Crystal Red / Black) and Knight Goby?

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)
Knight Goby
Test both in my tank

Behaviour & Temperament

Bee Shrimp (Crystal Red / Black) is a peaceful species (0/10), while Knight Goby is moderately assertive (6/10). This notable difference means Knight Goby may occasionally assert dominance over Bee Shrimp (Crystal Red / Black).

Large aggression gap (6 points) between Bee Shrimp (Crystal Red / Black) and Knight Goby increases stress risk for the more peaceful fish.

Bee Shrimp (Crystal Red / Black) and Knight Goby 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: Shrimp eaters may also prey on very small nano fish.

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.

The pH requirements of Bee Shrimp (Crystal Red / Black) (5.5–6.8) and Knight Goby (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 Knight Goby requires 10–30 dGH.

Tank Setup

To house Bee Shrimp (Crystal Red / Black) and Knight Goby together, plan for an aquarium of at least 75 litres with a minimum length of 60 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), Shells (Breeding/Hiding). 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 Knight Goby 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 Knight Goby 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 Knight Goby.

Show 17 more tank sizes

Diet & Feeding

Feeding time deserves special attention with this pairing. Knight Goby is a known shrimp eater and may prey on small invertebrates or nano fish like Bee Shrimp (Crystal Red / Black).

Frequently Asked Questions

Can Bee Shrimp (Crystal Red / Black) and Knight Goby 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 Knight Goby need?

A minimum of 75 litres (tank length at least 60 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 Knight Goby 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 Knight Goby aggressive?

Bee Shrimp (Crystal Red / Black) is peaceful (0/10) and Knight Goby is moderately assertive (6/10). 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 Knight Goby need?

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

Will Knight Goby nip Bee Shrimp (Crystal Red / Black)'s fins?

Knight Goby 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 Knight Goby in a larger group can help redirect nipping behaviour toward conspecifics.

How do I manage Knight Goby's territorial behaviour?

Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Knight Goby 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
April 28, 2026
Last updated
April 28, 2026
Issues or corrections?
Contact the editorial team

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