Can neon tetras and otocinclus live together?

Yes

Neon tetras and otocinclus can share a tank. Their water needs overlap and neither is known to bother the other.

Neon tetra Otocinclus

Why

  • Their temperature and pH ranges overlap comfortably, and neither is known to nip, chase or eat the other.

What each one needs

Neon tetraOtocinclusBoth
Temperature70–81°F (21–27°C)72–79°F (22–26°C)72–79°F (22–26°C)
pH6.0–7.06.0–7.56.0–7.0
Minimum tank10 gal (38 L)10 gal (38 L)10 gal (38 L)
Keep at least64
Adult size1.5 in (3.8 cm)1.8 in (4.6 cm)

The smallest tank for both

A 20 gallons (76 L) tank holds 6 neon tetras and 4 otocinclus at about 44% of its stocking limit, which leaves room for more.

Other tank mates for neon tetras

Other tank mates for otocinclus