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Galaxy Tetra (Moenkhausia cosmops)

Moenkhausia cosmops

Origin: Brazil (upper Xingu River headwaters)

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Water Parameters

Temperature2428 °C
15 °C35 °C
pH67.5
49
GH (Hardness)212 °dGH
0 °dGH30 °dGH
KH (Alkalinity)16 °dKH
0 °dKH20 °dKH

Quick Stats

Max Size
5 cm
Min Tank
80 L
Lifespan
3-6
Swimming Level
middle
Schooling
Yes (8–20+)
Diet
omnivore
Temperament
Peaceful; excellent community schooling tetra

About

Moenkhausia cosmops is a spectacular, recently described tetra from the upper Xingu River headwaters in Brazil, featuring a mosaic of iridescent blue and gold speckles across its flanks reminiscent of a starry sky. An active schooling fish that commands attention in any large planted display. Water quality and a protein-rich diet are key to maintaining its vibrant pattern.

Care Guide

Keep in schools of 8+. Soft, slightly acidic to neutral water with excellent filtration. Feed quality flake, frozen artemia, bloodworms, and micro-pellets. The iridescent speckle pattern is most vivid in clean water under good lighting. Provide open swimming space with planted areas. A truly stunning tetra worth seeking out.

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