Species

Head and tail light tetra

Hemigrammus ocellifer

easypeacefulmiddle swimmerCharacidae
Add 8 to my tank
Head and tail light tetra
Tank length
21 cm8 in
Group
8+
Temperature
22–26 °C72–79 °F
pH
5.5–7.5
Adult size
3.5 cm1.4 in
Lifespan
3–5 yrs

A hardy shoaler for community tanks; a group of eight or more shows its tail spot and calmer behaviour best.A hardy shoaler for community tanks; a group of eight or more shows its tail spot and calmer behaviour best.

Tank sizes

Good tankmates

Avoid with

Data used by the planner
Temperature22–26AqAdvisor (aqadvisor.com), retrieved 2026-10-04; agrees with FishBase (fishbase.se), retrieved 2026-10-04 · medium confidence
pH5.5–7.5AqAdvisor (aqadvisor.com), retrieved 2026-10-04; agrees with FishBase (fishbase.se), retrieved 2026-10-04 · medium confidence
Hardness (dGH)5–19AqAdvisor (aqadvisor.com), retrieved 2026-10-04; agrees with FishBase (fishbase.se), retrieved 2026-10-04 · medium confidence
OriginAmazon and Guiana coastal basins, South Americacurated-v0 (needs expert review) · low confidence
Beginner friendlyYescurated-v0 (needs expert review) · medium confidence
Care leveleasycurated-v0 (needs expert review) · medium confidence
Activityactivecurated-v0 (needs expert review) · medium confidence
Swimming levelmiddlecurated-v0 (needs expert review) · medium confidence
Temperamentpeacefulcurated-v0 (needs expert review) · medium confidence
Nips finsNocurated-v0 (needs expert review) · medium confidence
Long finsNocurated-v0 (needs expert review) · medium confidence
TerritorialNocurated-v0 (needs expert review) · medium confidence
Lives in groupsYescurated-v0 (needs expert review) · medium confidence
Minimum group8curated-v0 (needs expert review) · medium confidence
Dietomnivorecurated-v0 (needs expert review) · medium confidence
Lifespan (years)3–5curated-v0 (needs expert review) · low confidence
Months to adult size6curated-v0 (needs expert review) · low confidence
Safe with plantsYescurated-v0 (needs expert review) · medium confidence