Family: Characidae
Redline Tetra — a Characidae freshwater fish. Reaches 3.7–5.4 cm; keep at 23–27 °C.
A Characidae species: Hemigrammus rubrostriatus lives bottom-dwelling over blackwater streams and flooded forest. Mostly peaceful; larger species predatory. Adults reach 3.7–5.4 cm. It is one of the aquarium-kept Hemigrammus species we profile, alongside Hemigrammus bleheri, Hemigrammus ocellifer, Hemigrammus rhodostomus.
Difficulty: moderate. Mostly peaceful; larger species predatory. Strong shoalers; keep in groups of 8 or more.
Aim for 23–27 °C. Heater for stable tropical warmth; 23.0–27.0 °C typical for the genus.
Full size is 3.7–5.4 cm. Minimum tank: 35 L, with open swimming space along its bottom-dwelling habits.
Omnivore with carnivorous tilt. It forages naturally over dark sand and leaf litter, so let some food reach the bottom.
Yes, with care. Mostly peaceful; larger species predatory — pair it with Similar-sized peaceful community fish — Similar size and water needs and skip Much smaller fish — May outcompete or bully tiny tankmates.
It lives in blackwater streams and flooded forest. Still to gentle current; Moderate.
Low escape risk, but a lid is cheap insurance.
In the aquarium: egg-scatterer among fine plants. Subtle; females fuller-bodied.