Can Glass Catfish and Thai Micro Crab Live Together?

🟢Ideal Tank Mates

Yes, Glass Catfish and Thai Micro Crab are ideal tank mates. Both species share compatible water parameters and peaceful temperaments, making them well-suited for a community aquarium. They occupy different areas of the water column, which reduces competition for space. A minimum tank size of 132 litres is recommended.


At a Glance

Glass Catfish

Kryptopterus vitreolus

Thai Micro Crab

Limnopilos naiyanetri

🐠Family Group
Glass Catfish
Catfish
Thai Micro Crab
Invertebrates
Temperament
Glass Catfish
Peaceful (1/10)
Thai Micro Crab
Peaceful (0/10)
Temperature
✓ Compatible
Glass Catfish
24–28°C
Thai Micro Crab
22–28°C
pH Range
✓ Compatible
Glass Catfish
6–7
Thai Micro Crab
6.5–8
Hardness (dGH)
✓ Compatible
Glass Catfish
1–10
Thai Micro Crab
6–15
Water Type
✓ Compatible
Glass Catfish
Freshwater Only
Thai Micro Crab
Freshwater Only
Flow Preference
✓ Compatible
Glass Catfish
Moderate
Thai Micro Crab
Low
Min Tank Volume
Combined: 132 L
Glass Catfish
110 L
Thai Micro Crab
19 L
Swimming Level
✓ Different zones
Glass Catfish
Middle
Thai Micro Crab
Bottom
🏷️Behavior Tags
Glass Catfish
Shy / Slow Moving (Easily Stressed)Fry Predator
Thai Micro Crab
Nano / Bite-sized (Predation Risk)Shy / Slow Moving (Easily Stressed)Nocturnal

Behaviour & Temperament

Glass Catfish is a peaceful species (1/10), while Thai Micro Crab is peaceful (0/10). This modest difference means Glass Catfish may occasionally assert dominance over Thai Micro Crab.

In terms of spatial distribution, Glass Catfish prefers the Middle (Open Water) zone, whereas Thai Micro Crab occupies the Bottom (Substrate) zone. Because they use different levels of the water column, territorial disputes are less likely and the tank will appear more balanced.

Worth noting: Thai Micro Crab is nocturnal and will be most active after lights-out, naturally reducing daytime encounters.

Water Parameters

The safe temperature window for both species falls between 24°C and 28°C. Aim for the midpoint of this range (around 26.0°C) for optimal comfort.

Both fish can tolerate a pH between 6.5 and 7. Maintaining a stable value within this band is more important than hitting an exact number.

For general hardness, the shared comfort zone is 6–10 dGH. Regular testing will ensure conditions stay within this range. An aquarium test kit is recommended for monitoring.

Tank Setup

To house Glass Catfish and Thai Micro Crab together, plan for an aquarium of at least 132 litres with a minimum length of 90 cm. This accounts for the larger species' space requirements with an additional 20 % buffer to reduce territorial tension.

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: Plants - Densely covered, Plants - Floating, Leaf Litter/Blackwater. Meeting these requirements will help both species thrive.

Both species do well with moderate (standard) water movement, so a standard filtration setup rated for the tank volume should suffice.

Find the right tank equipment

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Frequently Asked Questions

Can Glass Catfish and Thai Micro Crab live together?

Yes. Glass Catfish and Thai Micro Crab are considered ideal tank mates. Their water parameters, temperaments, and behaviour profiles are well matched for a community aquarium.

What size tank do Glass Catfish and Thai Micro Crab need?

A minimum of 132 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 Glass Catfish and Thai Micro Crab together?

Keep the aquarium between 24°C and 28°C. A target of around 26.0°C sits comfortably within both species' preferred ranges.

Are Glass Catfish or Thai Micro Crab aggressive?

Glass Catfish is peaceful (1/10) and Thai Micro Crab is peaceful (0/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Glass Catfish and Thai Micro Crab need?

Both species overlap in the 6.5–7 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.

Does Thai Micro Crab being nocturnal affect compatibility?

Thai Micro Crab is most active after lights-out, which naturally reduces daytime encounters with its tank mate. This can actually be beneficial, as both fish get undisturbed time to feed and explore. Just ensure food reaches Thai Micro Crab during evening hours.


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