Can Checkerboard Cichlid and Delicate Blue-Eye Live Together?

Reviewed by Guidarium Editorial DeskUpdated May 4, 2026
Possible with Caution

Keeping Checkerboard Cichlid and Delicate 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

Checkerboard Cichlid

Dicrossus filamentosus

Delicate Blue-Eye

Pseudomugil tenellus

🐠Family Group
Checkerboard Cichlid
Cichlids - South American
Delicate Blue-Eye
Rainbowfish
Temperament
Checkerboard Cichlid
Mostly Peaceful (3/10)
Delicate Blue-Eye
Peaceful (1/10)
Temperature
✓ Compatible
Checkerboard Cichlid
24–30°C
Delicate Blue-Eye
25–32°C
pH Range
✓ Compatible
Checkerboard Cichlid
4.5–6.5
Delicate Blue-Eye
5–7.5
Hardness (dGH)
✓ Compatible
Checkerboard Cichlid
1–5
Delicate Blue-Eye
5–15
Water Type
✓ Compatible
Checkerboard Cichlid
Freshwater Only
Delicate Blue-Eye
Brackish Tolerant
Flow Preference
✓ Compatible
Checkerboard Cichlid
Low
Delicate Blue-Eye
Moderate
Min Tank Volume
Combined: 60 L
Checkerboard Cichlid
60 L
Delicate Blue-Eye
60 L
Swimming Level
Shared: 1 zone
Checkerboard Cichlid
BottomMiddle
Delicate Blue-Eye
TopMiddle
🏷️Behavior Tags
Checkerboard Cichlid
Shy / Slow Moving (Easily Stressed)Fry Predator
Delicate Blue-Eye
Nano / Bite-sized (Predation Risk)Hyperactive / Fast SwimmerJumper (Lid Required)Fry Predator
Stocking calculator

Can your tank handle Checkerboard Cichlid and Delicate 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.

Checkerboard Cichlid
Delicate Blue-Eye
Test both in my tank

Behaviour & Temperament

Checkerboard Cichlid is a generally mild-mannered species (3/10), while Delicate Blue-Eye is peaceful (1/10). This modest difference means Checkerboard Cichlid may occasionally assert dominance over Delicate Blue-Eye.

Checkerboard Cichlid and Delicate 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: Delicate 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: A larger aquarium with ample hiding spots can help diffuse aggression and give the less dominant fish space to retreat.

Water Parameters

The safe temperature window for both species falls between 25°C and 30°C. Aim for the midpoint of this range (around 27.5°C) for optimal comfort.

Both fish can tolerate a pH between 5 and 6.5. Maintaining a stable value within this band is more important than hitting an exact number.

For general hardness, the shared comfort zone is 5–5 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house Checkerboard Cichlid and Delicate 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), Leaf Litter/Blackwater, Driftwood (Digestion/Hiding), Plants - Densely covered, Plants - Floating. 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. Checkerboard Cichlid and Delicate 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 Checkerboard Cichlid and Delicate Blue-Eye.

Show 19 more tank sizes

Frequently Asked Questions

Can Checkerboard Cichlid and Delicate 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 Checkerboard Cichlid and Delicate 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 Checkerboard Cichlid and Delicate Blue-Eye together?

Keep the aquarium between 25°C and 30°C. A target of around 27.5°C sits comfortably within both species' preferred ranges.

Are Checkerboard Cichlid or Delicate Blue-Eye aggressive?

Checkerboard Cichlid is generally mild-mannered (3/10) and Delicate Blue-Eye is peaceful (1/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Checkerboard Cichlid and Delicate Blue-Eye need?

Both species overlap in the 5–6.5 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.

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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