A beginner-friendly fish guide

Mystery Snail

Mystery Snail

Pomacea diffusa

Gentle temperament; can be kept alone or in a group. Check the planner before choosing tank mates.

Beginner level 5/5

A good environment

Recommended temperature
22 ~ 26°C
Recommended pH
7.2 ~ 8.2
Preferred water hardness
Medium hardness
Minimum aquarium
19L or more

Reference sources list a wider range of 21~26°C and pH 7.2~8.5. The planner uses the narrower range above as a safer starting point for beginners.

At a glance

Group
Other invertebrates
Average adult size
about 5 cm (small)
Minimum tank length
about 20 cm
Activity level
Low
Waste level
Low
Lid recommended
Yes
Mature tank preferred
Yes

Temperament & group size

Gentle temperament; Can be kept alone or in a group.

Usually swims in the bottom.

Tank-mate notes

Adult shrimp may do well with hiding places, though individual fish vary.

Baby shrimp may still be at risk; watch how your fish behave.

Check each combination carefully, especially when size or temperament differs.

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Frequently asked questions

How big does Mystery Snail get, and what tank size does it need?

Adults average about 5 cm, a small species. The planner recommends an aquarium of at least 19 L and about 20 cm long.

What water temperature and pH does Mystery Snail need?

The planner range is 22~26°C and pH 7.2~8.2, with medium hardness. Reference sources list a wider range of 21~26°C and pH 7.2~8.5. The planner uses the narrower range above as a safer starting point for beginners.

How many Mystery Snail should be kept together?

Can be kept alone or in a group. Temperament is gentle.

Can Mystery Snail live with shrimp?

Adult shrimp: usually fine. Baby shrimp: usually fine.

Is Mystery Snail a good fish for beginners?

Beginner level 5/5. A lid is recommended. A mature, cycled aquarium is preferred. Activity: low; waste: low.