Can Male Betta and Siamese Algae Eater live together?

Male Betta and Siamese Algae Eater are possible with care. The comparison on this page runs the same compatibility engine as the tank builder, checking temperature and pH overlap, predation by size, temperament, and known hard-pair conflicts.

Species Comparison

Male Betta vs Siamese Algae Eater

Male Betta

Betta splendens

Siamese Algae Eater

Crossocheilus oblongus

Verdict:Possible with care

Side-by-side specs

Anabantoids

Family

Algae Eaters

2.5″

Adult size

5.5″

5gal

Min tank

30gal

76–82°F

Temperature

73–79°F

6.5–7.5

6.5–7.8

semi-aggressive

Temperament

peaceful

Solitary

Schooling

Solitary

top

Water level

bottom

Compatibility notes

warnMale Betta and Siamese Algae Eater only narrowly overlap in temperature — keep within 76–79°F.

Try both in the builder →Compare different species