Compatibility Overview
Glowlight Tetra 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 15 gallons), dense planting, and close monitoring are essential.
| Factor | Glowlight Tetra | Pea Puffer | Verdict |
|---|---|---|---|
| Temperature | 72–79°F | 74–82°F | ✅ 74–79°F |
| pH Range | 6.0–7.0 | 7.0–8.0 | ⚠️ 7.0–7.0 (narrow) |
| Temperament | semi | semi | ⚠️ Monitor |
| Adult Size | 1.6 in | 1 in | ✅ Similar |
| Min. Group | 1+ | 1+ | See below |
| Min. Tank Size | 15 gallons (for both species) | — | |
✅ Compatibility Positives
⚠️ Caution Points
Species Profiles
Glowlight Tetra — Aquarium species
The Glowlight Tetra is a vibrant, peaceful community fish known for its silver body and bright red-gold highlights. It thrives in a well-planted tank with plenty of swimming space and a gentle water flow. These tetras are easy to care for and are suitable for beginners.
→ Full Glowlight Tetra 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 Glowlight Tetra live with Pea Puffer?
With significant caution and a larger tank. Glowlight Tetra 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 15 gallons), dense planting, and close monitoring are essential.
What tank size do I need for Glowlight Tetra and Pea Puffer together?
A minimum of 15 gallons is recommended for keeping Glowlight Tetra and Pea Puffer together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Glowlight Tetra and Pea Puffer?
74–79°F
Is a Glowlight Tetra aggressive toward a Pea Puffer?
Glowlight Tetra is semi and Pea Puffer is semi. Their preferred pH ranges are difficult to reconcile.
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 | 71/100 |
| Ph | 0/100 |
| Temperament | 62/100 |
| Adult Size | 100/100 |
| 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 | 15 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 | 29 gal | Best when keeping larger schools or reducing territorial pressure. |