Compatibility Overview
Dwarf Gourami and Otocinclus can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges, and neither poses a major aggression risk to the other. A minimum 40-gallon tank is recommended to provide adequate territory and water volume for both species.
| Factor | Dwarf Gourami | Otocinclus | Verdict |
|---|---|---|---|
| Temperature | 72–82°F | 72–82°F | ✅ 72–82°F |
| pH Range | 6.0–7.5 | 6.0–7.5 | ✅ 6.0–7.5 |
| Temperament | semi | peaceful | ⚠️ Monitor |
| Adult Size | 3.5 in | 1.5 in | ⚠️ 2.3× difference |
| Min. Group | 1+ | 4+ | See below |
| Min. Tank Size | 40 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
Otocinclus — Otocinclus spp.
Tiny algae-eating catfish that are peaceful with all species. Need established algae growth and biofilm; sensitive to ammonia.
Frequently Asked Questions
Can Dwarf Gourami live with Otocinclus?
Yes, in a well-planned setup. Dwarf Gourami and Otocinclus can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges, and neither poses a major aggression risk to the other. A minimum 40-gallon tank is recommended to provide adequate territory and water volume for both species.
What tank size do I need for Dwarf Gourami and Otocinclus together?
A minimum of 40 gallons is recommended for keeping Dwarf Gourami and Otocinclus together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Dwarf Gourami and Otocinclus?
72–82°F
Is a Dwarf Gourami aggressive toward a Otocinclus?
Dwarf Gourami is semi and Otocinclus is peaceful. Minor aggression possible from the semi-aggressive species; provide hiding spots.