BLUE KING TETRA (Boehlkea fredcochui)

As with most tetra, the Cochu’s Blue Tetra will do best in a well planted fish tank aquarium, it is recommended that a group of at least 6 of them although ideally 10 are kept as this shoaling fish does better when part of a group.

https://www.tropicalfishsite.com/cochus-blue-tetra-boehlkea-fredcochui/