Can Betta Fish Live With Glowlight Tetra?
No, glowlight tetras are peaceful but compete for mid-level space with bettas, and bettas will chase and attack them.
Why
- Glowlight tetras reach 1.5 inches and school in the mid-level, occupying the same zone as a betta.
- Bettas are territorial and will view a school of glowlight tetras as an intrusion into their space.
- The betta's aggression causes glowlight tetras to scatter and hide, breaking their natural schooling behavior.
- Chronic stress in glowlight tetras leads to faded colors, poor appetite, and a shortened lifespan.
What could go wrong
The betta will chase the glowlight tetras until they hide constantly, at which point they stop eating and their health declines.
If you keep them in separate tanks
Sized for the 10 gallon minimum this pairing needs. Affiliate links — we earn a small commission if you buy through them.
AquaClear 20 Power Filter
Rated for up to 10 gallons with enough biological media to handle the waste from both species.
Eheim Jager 100W Thermostat Heater
Holds a steady temperature inside the 76-82°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
Glowlight tetras do well in community tanks with peaceful fish like corydoras or other rasboras. Bettas do well with bottom-dwellers or alone.
Related compatibility questions
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