Compatibility Overview
Dwarf Gourami and Pea Puffer can potentially coexist, but the combination requires careful attention. Some combination of water parameter differences, size mismatch, or temperament issues make this pair challenging. A larger tank (minimum 29 gallons), dense planting, and close monitoring are essential.
| Factor | Dwarf Gourami | Pea Puffer | Verdict |
|---|---|---|---|
| Temperature | 72–82°F | 74–82°F | ✅ 74–82°F |
| pH Range | 6.0–7.5 | 7.0–8.0 | ⚠️ 7.0–7.5 (narrow) |
| Temperament | semi | semi | ⚠️ Monitor |
| Adult Size | 3.5 in | 1 in | ⚠️ 3.5× difference |
| Min. Group | 1+ | 1+ | See below |
| Min. Tank Size | 29 gallons (for both species) | — | |
✅ Compatibility Positives
⚠️ Caution Points
Species Profiles
Dwarf Gourami — Trichogaster lalius
Colourful labyrinth fish that is generally peaceful but can be territorial toward similar species. Susceptible to Dwarf Gourami Iridovirus.
→ Full Dwarf Gourami 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 Dwarf Gourami live with Pea Puffer?
With significant caution and a larger tank. Dwarf Gourami and Pea Puffer can potentially coexist, but the combination requires careful attention. Some combination of water parameter differences, size mismatch, or temperament issues make this pair challenging. A larger tank (minimum 29 gallons), dense planting, and close monitoring are essential.
What tank size do I need for Dwarf Gourami and Pea Puffer together?
A minimum of 29 gallons is recommended for keeping Dwarf Gourami and Pea Puffer together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Dwarf Gourami and Pea Puffer?
74–82°F
Is a Dwarf Gourami aggressive toward a Pea Puffer?
Dwarf Gourami is semi and Pea Puffer is semi. Limited pH overlap (7.0–7.5) — maintain pH carefully within this narrow window.