Günther’s killifish

Nothobranchius guentheri

Blue-green body and a black-edged red tail; check legacy identities.

The male has oblique red gill marks, red-edged blue-green scales and a red rounded tail with a black rear border.

Natural habitat: Inhabits temporary pools, swamps, ditches and small streams that may dry seasonally.

Seasonal habitat does not mean a one-year life. Wild water is 25–29°C.

Appearance and identification

Found on Unguja in Tanzania's Zanzibar archipelago. Old guentheri labels included fish later assigned to melanospilus.

Breeds in trios and groups. Watch pursued individuals.

Keep feeding access clear and allow separation and cleaning.

Offer varied small live foods and occasional frozen food. Fry take Artemia.

Check feeding and refuge access. Rivalry calls for separation options.

Keep the planted display separate from substrate-egg management: removable spawning media make collection easy.

Sources