Compatibility Overview
Mystery Snail and Pea Puffer are generally not recommended to be housed together. The issues listed above — whether water parameter incompatibility, predation risk, or aggression — create conditions where one or both fish are likely to suffer harm or chronic stress.
| Factor | Mystery Snail | Pea Puffer | Verdict |
|---|---|---|---|
| Temperature | 68–80°F | 74–82°F | ✅ 74–80°F |
| pH Range | 7.0–8.0 | 7.0–8.0 | ✅ 7.0–8.0 |
| Temperament | peaceful | semi | ⚠️ Monitor |
| Adult Size | 2 in | 1 in | ⚠️ 2.0× difference |
| Min. Group | 1+ | 1+ | See below |
| Min. Tank Size | 20 gallons (for both species) | — | |
✅ Compatibility Positives
❌ Incompatibility Reasons
Species Profiles
Mystery Snail — Pomacea bridgesii
Large, peaceful aquarium snails that graze on algae and detritus. Shell provides some protection but can be harassed by certain fish.
→ Full Mystery Snail care guide
Pea Puffer — Carinotetraodon travancoricus
World's smallest pufferfish — intensely territorial and nippy despite tiny size. Will attack fins and eat shrimp and snails.
Frequently Asked Questions
Can Mystery Snail live with Pea Puffer?
Generally not recommended. Mystery Snail and Pea Puffer are generally not recommended to be housed together. The issues listed above — whether water parameter incompatibility, predation risk, or aggression — create conditions where one or both fish are likely to suffer harm or chronic stress.
What tank size do I need for Mystery Snail and Pea Puffer together?
A minimum of 20 gallons is recommended for keeping Mystery Snail and Pea Puffer together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Mystery Snail and Pea Puffer?
74–80°F
Is a Mystery Snail aggressive toward a Pea Puffer?
Mystery Snail is peaceful and Pea Puffer is semi. Pea puffers will eat mystery snails.