G. filamentosa has appeared in the ornamental trade but is evidently delicate and therefore recommended only to experienced aquarists.

It can be told apart from congeners by the following combination of characters: possession of filamentous dorsal and anal-fin rays in males; body transparent to translucent yellowish-brown colour in life; absence of a highly-extended second anal-fin spine; absence of carmine-red pigmentation in the dorsal, anal an…

A densely-planted tank with floating vegetation and roots, twigs or branches and natural leaf litter would seem appropriate.

There’s no need to use natural peat, the collection of which is both unsustainable and environmentally-destructive.

Filtration should not be strong with an air-powered sponge-type unit ideal, and given it naturally inhab…