Can Clown Killifish and Ramshorn Snail Live Together?

🟢Ideal Tank Mates

Yes, Clown Killifish and Ramshorn Snail 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 23 litres is recommended.


At a Glance

Clown Killifish

Epiplatys annulatus

Ramshorn Snail

Planorbidae fam.

🐠Family Group
Clown Killifish
Killifish
Ramshorn Snail
Invertebrates
Temperament
Clown Killifish
Peaceful (2/10)
Ramshorn Snail
Peaceful (0/10)
Temperature
✓ Compatible
Clown Killifish
23–27°C
Ramshorn Snail
15–30°C
pH Range
✓ Compatible
Clown Killifish
5–7
Ramshorn Snail
7–8.5
Hardness (dGH)
✓ Compatible
Clown Killifish
1–8
Ramshorn Snail
8–20
Water Type
✓ Compatible
Clown Killifish
Freshwater Only
Ramshorn Snail
Freshwater Only
Flow Preference
✓ Compatible
Clown Killifish
Low
Ramshorn Snail
Low
Min Tank Volume
Combined: 23 L
Clown Killifish
19 L
Ramshorn Snail
5 L
Swimming Level
Shared: 1 zone
Clown Killifish
Top
Ramshorn Snail
BottomMiddleTop
🏷️Behavior Tags
Clown Killifish
Nano / Bite-sized (Predation Risk)Jumper (Lid Required)Shy / Slow Moving (Easily Stressed)Fry Predator
Ramshorn Snail
Nano / Bite-sized (Predation Risk)

Behaviour & Temperament

Clown Killifish is a peaceful species (2/10), while Ramshorn Snail is peaceful (0/10). This modest difference means Clown Killifish may occasionally assert dominance over Ramshorn Snail.

Clown Killifish and Ramshorn Snail both frequent the Top (Surface) region of the setup. This overlap can increase competition for space, so providing ample room and cover is important to keep both species comfortable.

Worth noting: Clown Killifish is a known jumper, so a tight-fitting lid is essential.

Water Parameters

The safe temperature window for both species falls between 23°C and 27°C. Aim for the midpoint of this range (around 25.0°C) for optimal comfort.

Both fish can tolerate a pH between 7 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 8–8 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house Clown Killifish and Ramshorn Snail together, plan for an aquarium of at least 23 litres with a minimum length of 30 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 - Floating, Plants - Densely covered, Leaf Litter/Blackwater, Established Algae (Otocinclus). 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 Clown Killifish and Ramshorn Snail live together?

Yes. Clown Killifish and Ramshorn Snail are considered ideal tank mates. Their water parameters, temperaments, and behaviour profiles are well matched for a community aquarium.

What size tank do Clown Killifish and Ramshorn Snail need?

A minimum of 23 litres (tank length at least 30 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 Clown Killifish and Ramshorn Snail together?

Keep the aquarium between 23°C and 27°C. A target of around 25.0°C sits comfortably within both species' preferred ranges.

Are Clown Killifish or Ramshorn Snail aggressive?

Clown Killifish is peaceful (2/10) and Ramshorn Snail is peaceful (0/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Clown Killifish and Ramshorn Snail need?

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


Related Comparisons