Can Betta Fish Live With Siamese Algae Eater?
No, Siamese algae eaters grow to 6 inches and are fast active swimmers that stress bettas and compete for space.
Why
- Siamese algae eaters reach 6 inches fully grown and need at least 30 gallons, while a betta thrives in 5-10 gallons.
- SAEs are active bottom-to-mid swimmers that cruise the tank constantly. A betta interprets this as territory intrusion.
- SAEs may nip betta fins during feeding or exploration, especially as they grow larger.
- Bettas prefer slow-moving tankmates near the surface. An active SAE in the mid-column disrupts the betta's comfort zone.
What could go wrong
A betta flares and charges an SAE constantly, while the SAE outpaces the betta and may nip fins when the betta rests.
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
SAEs do well in large community tanks with active fish like barbs or larger danios. Bettas do well with nerite snails or corydoras.
Related compatibility questions
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