Can Betta Fish Live With Glass Catfish?
No, glass catfish are fragile schooling fish that need groups of 6+ and will be harassed by bettas until they die of stress.
Why
- Glass catfish grow 3-4 inches and need schools of at least 6 individuals to feel secure.
- They are fragile fish that lose transparency and become stressed when conditions are poor or tankmates are aggressive.
- Bettas are territorial and will attack anything with long fins or unusual movement, including glass catfish.
- Glass catfish need 30-55 gallons just for a proper school, which exceeds typical betta tank setups.
- Glass catfish are sensitive to water quality fluctuations and stress, which betta aggression exacerbates.
What could go wrong
Bettas will chase and nip at glass catfish, causing chronic stress that leads to transparency loss, refusal to eat, and death.
If you keep them in separate tanks
Sized for the 30 gallon minimum this pairing needs. Affiliate links — we earn a small commission if you buy through them.
AquaClear 70 Power Filter
Oversized filtration is what lets you stock two species together without water quality crashing. Rated for a tank slightly larger than the 30 gallon minimum.
Eheim Jager 200W Thermostat Heater
Holds a steady temperature inside the 76-79°F window both species need.
API Freshwater Master Test Kit
Keep ammonia, nitrite, and nitrate in check. Two-species tanks have more bioload and less margin for error than single-species setups.
Better pairings to consider
Bettas do well with peaceful community fish like corydoras or small rasboras. Glass catfish do well with neon tetras, honey gouramis, or peaceful community fish in species-appropriate tanks.
Related compatibility questions
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