Rummy nose tetra (Hemigrammus rhodostomus)
Rummy nose tetra (Hemigrammus rhodostomus) is a fish with bright red spot on its head, its fluke has black and white stripes and the body is silvery.

At that rummy nose tetra is quite small fish – about 4.5 cm long, with a peaceful temper and it can be a good tank mate for any peaceful fish.
In fact, there are 3 types of tetra fish that can be encountered with such a name – rummy nose tetra. The classical Hemigrammus rhodostomus actially is a rummy-nose tetra.

Brilliant Rummy-Nose Hemigrammus bleheri was discovered later and it inhabits in other parts of Brazil. And one more fish – Petitella georgiae or False Rummy-nose, which inhabits in water with higher hardness level.

Though the fishes have different requirements as for their care, they are very much alike and only true specialists can see between them.
Scientific Name Hemigrammus rhodostomus
Common Name Rummy-nose tetra
Tank size 25 gallon/80 litre
Temperament Peaceful/Timid
Diet Omnivorous
Temperature 75–81 °F (24–27 °C)
pH pH around 6.4–7.0
Length 1.75-inches