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Compatibility

Compatibility brief

Can Clown Loach live with Mystery Snail?

VerdictRISKY

Risky. This mix is commonly discouraged for typical setups.

Clown Loach + Mystery Snail: Known incompatible pairing. Clown loaches harass mystery snails, often pulling them out of the shell. Even when they cannot crack the shell, the snail stays sealed and starves over weeks.

Compatibility score

30/100

Profile confidence: low

Order of checkstank volume vs adults → predation mouth gap → temperament / fin nipping → shared water windows.

Min tank

400L

Combined minimum footprint reference for these two species: about 400L (larger active fish often want more length).

Temperature
Range in °C2428°C shared
Clown LoachMystery SnailShared window
pH
Range77.5 shared
Clown LoachMystery SnailShared window
Temperament / behaviour

Clown loaches often harass and eat mystery snails, especially when the loaches are hungry or the snail is vulnerable. The behaviour is common enough that snail keepers treat clown loaches as incompatible with ornamental snails. A large tank does not reliably stop the hunting instinct.

Assessment details

  1. Known incompatible pairing

    Top issue

    Clown loaches harass mystery snails, often pulling them out of the shell. Even when they cannot crack the shell, the snail stays sealed and starves over weeks.

  2. Clown Loach eats snails

    Clown Loach preys on aquarium snails — Mystery Snail will be hunted, not cohabited. Do not mix a valued snail with this species.

  3. Compatible temperature range

    Both fish can comfortably share similar water temperatures.

Clown loaches harass mystery snails, often pulling them out…

Known incompatible pairing

Next steps

Concrete changes, not "research more" filler.

  • Keep mystery snails with peaceful non-loach communities. Keep clown loaches with robust tank mates and expect snails to be treated as food.
  • Clown Loach should be kept in a group of at least 6 for best health and behaviour.
  • Clown Loach reaches ~30cm: tank length and turning room matter more than the litre number. A tall, short tank of the same volume is not equivalent.
Sources from both profiles
Only URLs that exist on the species records are shown. We do not fabricate citations.

Try this next

Build the full stocking list with Clown Loach + Mystery Snail

Plan further

Check each species’ mates list, size the glass, then verify the full stock in the builder. Methodology explains how verdicts are produced.

Individual fish vary in personality. Fishori uses conservative hobby rules. Observe any new introduction closely, feed thoughtfully, and keep a quarantine or backup plan. This is not veterinary advice.

Profile data confidence: medium. Driven by the lower-confidence profile (Mystery Snail): Typical care sources — trade names for this fish get mixed up, so verify the ID before you buy.

Clown Loach + Mystery Snail — common questions

Can Clown Loach live with Mystery Snail?
For most keepers, no. Fishori rates this RISKY because clown loaches commonly attack mystery snails. If snails matter to you, skip clown loaches.
What tank size do you need for Clown Loach and Mystery Snail together?
Plan around 400 litres as the working minimum. That figure comes from each species' published minimum and their group needs, and it assumes adult sizes, not shop sizes.
What's the main risk?
Known incompatible pairing. That is the check that fails outright for this pair. The matching entry under assessment details on this page explains the reasoning and the numbers behind it.
What should you check before buying?
Clown Loach should be kept in a group of at least 6 for best health and behaviour. Clown Loach reaches ~30cm: tank length and turning room matter more than the litre number. A tall, short tank of the same volume is not equivalent.