Compatibility Overview
Clown Loach and Firefish Goby 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 | Clown Loach | Firefish Goby | Verdict |
|---|---|---|---|
| Temperature | 77–86°F | 72–81°F | ✅ 77–81°F |
| pH Range | 6.0–7.5 | 8.1–8.4 | ❌ No overlap |
| Temperament | peaceful | semi | ⚠️ Monitor |
| Adult Size | 12 in | 1.2 in | ❌ 10× difference |
| Min. Group | 5+ | 1+ | See below |
| Min. Tank Size | 100 gallons (for both species) | — | |
✅ Compatibility Positives
❌ Incompatibility Reasons
Species Profiles
Clown Loach — Chromobotia macracanthus
Striking striped loach that grows very large. Peaceful with fish but will eat shrimp, snails and tiny fish.
Firefish Goby — Aquarium species
The Firefish Goby is a popular choice for saltwater aquariums due to its vibrant colors and peaceful nature. These goby fish thrive in well-maintained tanks with plenty of live rock for them to explore. They are best kept in pairs or small groups and can be a great addition to a community tank with compatible species. It's important to provide them with a sp
Frequently Asked Questions
Can Clown Loach live with Firefish Goby?
Generally not recommended. Clown Loach and Firefish Goby 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 Clown Loach and Firefish Goby together?
A minimum of 100 gallons is recommended for keeping Clown Loach and Firefish Goby together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Clown Loach and Firefish Goby?
77–81°F
Is a Clown Loach aggressive toward a Firefish Goby?
Clown Loach is peaceful and Firefish Goby is semi. These animals require different water types and cannot share one aquarium.
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 | 44/100 |
| Ph | 0/100 |
| Temperament | 75/100 |
| Adult Size | 8/100 |
| 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 | 100 gal | Only for the recommended minimum groups, mature filtration, and close monitoring. |
| Recommended community | 150 gal | Adds territory, swimming room, and a safer buffer for behavior. |
| Low-conflict setup | 220 gal | Best when keeping larger schools or reducing territorial pressure. |