Compatibility Overview
Pea Puffer and Sparkling Gourami 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 20 gallons), dense planting, and close monitoring are essential.
| Factor | Pea Puffer | Sparkling Gourami | Verdict |
|---|---|---|---|
| Temperature | 74–82°F | 73–82°F | ✅ 74–82°F |
| pH Range | 7.0–8.0 | 6.5–7.5 | ⚠️ 7.0–7.5 (narrow) |
| Temperament | semi | semi | ⚠️ Monitor |
| Adult Size | 1 in | 2.0 in | ⚠️ 2.0× difference |
| Min. Group | 1+ | 1+ | See below |
| Min. Tank Size | 20 gallons (for both species) | — | |
✅ Compatibility Positives
⚠️ Caution Points
Species Profiles
Pea Puffer — Carinotetraodon travancoricus
World's smallest pufferfish — intensely territorial and nippy despite tiny size. Will attack fins and eat shrimp and snails.
Sparkling Gourami — Aquarium species
The Sparkling Gourami is a popular freshwater fish known for its vibrant colors and peaceful nature. It is well-suited for beginners due to its easy care requirements and compatibility with a variety of tank mates. These gouramis thrive in a well-maintained tank with plenty of swimming space and gentle water flow. Providing a planted tank can enhance their n
Frequently Asked Questions
Can Pea Puffer live with Sparkling Gourami?
With significant caution and a larger tank. Pea Puffer and Sparkling Gourami 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 20 gallons), dense planting, and close monitoring are essential.
What tank size do I need for Pea Puffer and Sparkling Gourami together?
A minimum of 20 gallons is recommended for keeping Pea Puffer and Sparkling Gourami together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Pea Puffer and Sparkling Gourami?
74–82°F
Is a Pea Puffer aggressive toward a Sparkling Gourami?
Pea Puffer is semi and Sparkling Gourami is semi. No major aggression issues are expected between these species.
Related Compatibility Guides
Compatibility score breakdown
The overall score is weighted across water chemistry, behavior, adult size, swimming zone, and social needs. A score is a planning aid—not a guarantee for individual fish.
| Factor | Score |
|---|---|
| Temperature | 100/100 |
| Ph | 50/100 |
| Temperament | 62/100 |
| Adult Size | 72/100 |
| Swim Zone | 68/100 |
| Social Needs | 92/100 |
Tank size scenarios
Use the scenario that matches the actual group sizes and temperament you plan to keep.
| Scenario | Tank | When it applies |
|---|---|---|
| Minimum viable | 20 gal | Only for the recommended minimum groups, mature filtration, and close monitoring. |
| Recommended community | 29 gal | Adds territory, swimming room, and a safer buffer for behavior. |
| Low-conflict setup | 40 gal | Best when keeping larger schools or reducing territorial pressure. |