Compatibility Overview
Bolivian Ram 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 20 gallons), dense planting, and close monitoring are essential.
| Factor | Bolivian Ram | Pea Puffer | Verdict |
|---|---|---|---|
| Temperature | 72–82°F | 74–82°F | ✅ 74–82°F |
| pH Range | 6.5–7.5 | 7.0–8.0 | ⚠️ 7.0–7.5 (narrow) |
| Temperament | semi | semi | ⚠️ Monitor |
| Adult Size | 2.0 in | 1 in | ⚠️ 2.0× difference |
| Min. Group | 1+ | 1+ | See below |
| Min. Tank Size | 20 gallons (for both species) | — | |
✅ Compatibility Positives
⚠️ Caution Points
Species Profiles
Bolivian Ram — Aquarium species
The Bolivian Ram is a popular freshwater fish known for its vibrant colors and peaceful nature. They are well-suited for community tanks with other peaceful species. These fish are relatively easy to care for, making them a great choice for beginners. They require a well-maintained tank with a moderate water flow and plenty of space for swimming.
→ Full Bolivian Ram 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 Bolivian Ram live with Pea Puffer?
With significant caution and a larger tank. Bolivian Ram 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 20 gallons), dense planting, and close monitoring are essential.
What tank size do I need for Bolivian Ram and Pea Puffer together?
A minimum of 20 gallons is recommended for keeping Bolivian Ram and Pea Puffer together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Bolivian Ram and Pea Puffer?
74–82°F
Is a Bolivian Ram aggressive toward a Pea Puffer?
Bolivian Ram is semi and Pea Puffer 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. |