Can Assassin Snail and Peacock Gudgeon Live Together?

🟢Ideal Tank Mates

Yes, Assassin Snail and Peacock Gudgeon are ideal tank mates. Both species share compatible water parameters and peaceful temperaments, making them well-suited for a community aquarium. A minimum tank size of 48 litres is recommended.


At a Glance

Assassin Snail

Clea helena

Peacock Gudgeon

Tateurndina ocellicauda

🐠Family Group
Assassin Snail
Invertebrates
Peacock Gudgeon
Gobies & Gudgeons
Temperament
Assassin Snail
Peaceful (2/10)
Peacock Gudgeon
Peaceful (2/10)
Temperature
✓ Compatible
Assassin Snail
22–28°C
Peacock Gudgeon
22–26°C
pH Range
✓ Compatible
Assassin Snail
7–8
Peacock Gudgeon
6.5–7.5
Hardness (dGH)
✓ Compatible
Assassin Snail
8–15
Peacock Gudgeon
5–10
Water Type
✓ Compatible
Assassin Snail
Freshwater Only
Peacock Gudgeon
Freshwater Only
Flow Preference
✓ Compatible
Assassin Snail
Low
Peacock Gudgeon
Low
Min Tank Volume
Combined: 48 L
Assassin Snail
10 L
Peacock Gudgeon
40 L
Swimming Level
Shared: 1 zone
Assassin Snail
Bottom
Peacock Gudgeon
MiddleBottom
🏷️Behavior Tags
Assassin Snail
Nano / Bite-sized (Predation Risk)Snail EaterDigger (Disturbs Substrate)
Peacock Gudgeon
Nano / Bite-sized (Predation Risk)Shy / Slow Moving (Easily Stressed)Fry Predator

Behaviour & Temperament

Both Assassin Snail and Peacock Gudgeon are peaceful species with an aggression score of 2/10. Their matching temperaments mean neither fish is likely to dominate the other in a shared aquarium.

Assassin Snail and Peacock Gudgeon both frequent the Bottom (Substrate) region of the setup. This overlap can increase competition for space, so providing ample room and cover is important to keep both species comfortable.

Water Parameters

The safe temperature window for both species falls between 22°C and 26°C. Aim for the midpoint of this range (around 24.0°C) for optimal comfort.

Both fish can tolerate a pH between 7 and 7.5. Maintaining a stable value within this band is more important than hitting an exact number.

For general hardness, the shared comfort zone is 8–10 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house Assassin Snail and Peacock Gudgeon together, plan for an aquarium of at least 48 litres with a minimum length of 45 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: Sand (Sifters), Plants - Densely covered, 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.

Frequently Asked Questions

Can Assassin Snail and Peacock Gudgeon live together?

Yes. Assassin Snail and Peacock Gudgeon are considered ideal tank mates. Their water parameters, temperaments, and behaviour profiles are well matched for a community aquarium.

What size tank do Assassin Snail and Peacock Gudgeon need?

A minimum of 48 litres (tank length at least 45 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 Assassin Snail and Peacock Gudgeon together?

Keep the aquarium between 22°C and 26°C. A target of around 24.0°C sits comfortably within both species' preferred ranges.

Are Assassin Snail or Peacock Gudgeon aggressive?

Assassin Snail is peaceful (2/10) and Peacock Gudgeon is peaceful (2/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Assassin Snail and Peacock Gudgeon need?

Both species overlap in the 7–7.5 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.


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