Can Bumblebee Goby (Brackish) and Pacific Blue Eye Live Together?

Reviewed by Guidarium Editorial DeskUpdated May 7, 2026
Possible with Caution

Keeping Bumblebee Goby (Brackish) and Pacific Blue Eye together is possible but requires caution due to potential behavioral clashes. Provide a spacious tank of at least 60 litres with plenty of hiding spots to reduce stress. Monitor behaviour closely, especially during the first few weeks.


At a Glance

Bumblebee Goby (Brackish)

Brachygobius xanthozonus

Pacific Blue Eye

Pseudomugil signifer

🐠Family Group
Bumblebee Goby (Brackish)
Gobies & Gudgeons
Pacific Blue Eye
Rainbowfish
Temperament
Bumblebee Goby (Brackish)
Mostly Peaceful (4/10)
Pacific Blue Eye
Peaceful (2/10)
Temperature
✓ Compatible
Bumblebee Goby (Brackish)
24–28°C
Pacific Blue Eye
20–26°C
pH Range
✓ Compatible
Bumblebee Goby (Brackish)
7–8.5
Pacific Blue Eye
6.5–8
Hardness (dGH)
✓ Compatible
Bumblebee Goby (Brackish)
10–25
Pacific Blue Eye
5–15
Water Type
✓ Compatible
Bumblebee Goby (Brackish)
Brackish Required
Pacific Blue Eye
Brackish Tolerant
Flow Preference
✓ Compatible
Bumblebee Goby (Brackish)
Low
Pacific Blue Eye
Moderate
Min Tank Volume
Combined: 60 L
Bumblebee Goby (Brackish)
38 L
Pacific Blue Eye
60 L
Swimming Level
✓ Different zones
Bumblebee Goby (Brackish)
Bottom
Pacific Blue Eye
TopMiddle
🏷️Behavior Tags
Bumblebee Goby (Brackish)
Nano / Bite-sized (Predation Risk)Territorial (Defends specific area)Aggressive to same species/look-alikesShrimp Eater
Pacific Blue Eye
Nano / Bite-sized (Predation Risk)Hyperactive / Fast SwimmerJumper (Lid Required)Fry Predator
Stocking calculator

Can your tank handle Bumblebee Goby (Brackish) and Pacific 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.

Bumblebee Goby (Brackish)
Pacific Blue Eye
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Behaviour & Temperament

Bumblebee Goby (Brackish) is a generally mild-mannered species (4/10), while Pacific Blue Eye is peaceful (2/10). This modest difference means Bumblebee Goby (Brackish) may occasionally assert dominance over Pacific Blue Eye.

In terms of spatial distribution, Bumblebee Goby (Brackish) prefers the Bottom (Substrate) zone, whereas Pacific Blue Eye occupies the Top (Surface) and Middle (Open Water) zones. Because they use different levels of the water column, territorial disputes are less likely and the tank will appear more balanced.

Additional behavioural considerations to keep in mind: Shrimp eaters may also prey on very small nano fish.

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

To improve the chances of a peaceful coexistence in this community tank: Provide a significantly larger tank (at least 50% more volume than the minimum) to allow both Bumblebee Goby (Brackish) and Pacific Blue Eye to establish separate territories. Add plenty of line-of-sight breaks using driftwood, rocks, and dense planting to reduce territorial confrontations.

Water Parameters

The safe temperature window for both species falls between 24°C and 26°C. Aim for the midpoint of this range (around 25.0°C) for optimal comfort.

Both fish can tolerate a pH between 7 and 8. Maintaining a stable value within this band is more important than hitting an exact number.

For general hardness, the shared comfort zone is 10–15 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house Bumblebee Goby (Brackish) and Pacific Blue Eye together, plan for an aquarium of at least 60 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.

Because this pairing requires extra vigilance, include plenty of hiding spots — caves, driftwood, and dense plant clusters — so the less dominant fish can retreat when needed.

Specific environmental needs for this combination include: Sand (Sifters), Shells (Breeding/Hiding), Smooth Gravel (Sensitive Barbels), Plants - Densely covered. Meeting these requirements will help both species thrive.

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 Needs Extra Planning in Practice

This pairing usually fails when the tank is treated like a standard mixed community and the caution flags are ignored. Bumblebee Goby (Brackish) and Pacific Blue Eye need extra room, more cover, and closer observation during the first few weeks so small aggression, feeding, or territory issues do not snowball into a long-term problem.

Suitable Tank Sizes

Standard aquarium sizes large enough for both Bumblebee Goby (Brackish) and Pacific Blue Eye.

Show 19 more tank sizes

Diet & Feeding

Feeding time deserves special attention with this pairing. Bumblebee Goby (Brackish) is a known shrimp eater and may prey on small invertebrates or nano fish like Pacific Blue Eye.

Frequently Asked Questions

Can Bumblebee Goby (Brackish) and Pacific Blue Eye live together?

They can coexist, but the pairing requires careful monitoring. Provide ample space (at least 60 litres), plenty of hiding spots, and watch for signs of stress or aggression.

What size tank do Bumblebee Goby (Brackish) and Pacific Blue Eye need?

A minimum of 60 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 Bumblebee Goby (Brackish) and Pacific Blue Eye together?

Keep the aquarium between 24°C and 26°C. A target of around 25.0°C sits comfortably within both species' preferred ranges.

Are Bumblebee Goby (Brackish) or Pacific Blue Eye aggressive?

Bumblebee Goby (Brackish) is generally mild-mannered (4/10) and Pacific Blue Eye is peaceful (2/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Bumblebee Goby (Brackish) and Pacific Blue Eye need?

Both species overlap in the 7–8 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.

How do I manage Bumblebee Goby (Brackish)'s territorial behaviour?

Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Bumblebee Goby (Brackish) 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 7, 2026
Last updated
May 7, 2026
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