Can False Glass Catfish and Golden Oto Live Together?

Possible with Caution

Keeping False Glass Catfish and Golden Oto together is possible but requires caution due to potential behavioral clashes. Provide a spacious tank of at least 110 litres with plenty of hiding spots to reduce stress. Monitor behaviour closely, especially during the first few weeks.


At a Glance

False Glass Catfish

Kryptopterus macrocephalus

Golden Oto

Macrotocinclus affinis

🐟Family Group
False Glass Catfish
Catfish
Golden Oto
Catfish
Temperament
False Glass Catfish
Peaceful (2/10)
Golden Oto
Peaceful (0/10)
Temperature
✓ Compatible
False Glass Catfish
22–28°C
Golden Oto
21–27°C
pH Range
✓ Compatible
False Glass Catfish
5–7
Golden Oto
6–7.5
Hardness (dGH)
✓ Compatible
False Glass Catfish
1–8
Golden Oto
4–15
Water Type
✓ Compatible
False Glass Catfish
Freshwater Only
Golden Oto
Freshwater Only
Flow Preference
✓ Compatible
False Glass Catfish
Low
Golden Oto
Moderate
Min Tank Volume
Combined: 110 L
False Glass Catfish
110 L
Golden Oto
38 L
Swimming Level
Shared: 1 zone
False Glass Catfish
Middle
Golden Oto
MiddleBottom
🏷️Behavior Tags
False Glass Catfish
Shy / Slow Moving (Easily Stressed)Fry PredatorShrimp Eater
Golden Oto
Nano / Bite-sized (Predation Risk)Shy / Slow Moving (Easily Stressed)
Stocking calculator

Can your tank handle False Glass Catfish and Golden Oto?

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.

False Glass Catfish
Golden Oto
Test both in my tank

Behaviour & Temperament

False Glass Catfish is a peaceful species (2/10), while Golden Oto is peaceful (0/10). This modest difference means False Glass Catfish may occasionally assert dominance over Golden Oto.

False Glass Catfish and Golden Oto 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: Shrimp eaters may also prey on very small nano fish.

Water Parameters

The safe temperature window for both species falls between 22°C and 27°C. Aim for the midpoint of this range (around 24.5°C) for optimal comfort.

Both fish can tolerate a pH between 6 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 4–8 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house False Glass Catfish and Golden Oto together, plan for an aquarium of at least 110 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.

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: Plants - Densely covered, Plants - Floating, Leaf Litter/Blackwater, Established Algae (Otocinclus), Smooth Gravel (Sensitive Barbels). 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.

Suitable Tank Sizes

Standard aquarium sizes large enough for both False Glass Catfish and Golden Oto.

Show 10 more tank sizes

Diet & Feeding

Feeding time deserves special attention with this pairing. False Glass Catfish is a known shrimp eater and may prey on small invertebrates or nano fish like Golden Oto.

Frequently Asked Questions

Can False Glass Catfish and Golden Oto live together?

They can coexist, but the pairing requires careful monitoring. Provide ample space (at least 110 litres), plenty of hiding spots, and watch for signs of stress or aggression.

What size tank do False Glass Catfish and Golden Oto need?

A minimum of 110 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 False Glass Catfish and Golden Oto together?

Keep the aquarium between 22°C and 27°C. A target of around 24.5°C sits comfortably within both species' preferred ranges.

Are False Glass Catfish or Golden Oto aggressive?

False Glass Catfish is peaceful (2/10) and Golden Oto is peaceful (0/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do False Glass Catfish and Golden Oto need?

Both species overlap in the 6–7 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.


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