I’m very torn on this one. Although most people have told me 2 dendrobates tinctorious “azureus” are too many for an 18 cube, I have found multiple websites stating you can house 2 in an 18 cube.
Dendrobates tinctorius 'Azureus' are large, bright blue frogs who are typically quite confident in captivity. Like all tinctorius, the Azureus are diurnal,
junglejewelexotics.com
Dendrobates tinctorius ‘Azureus’ is a fairly large morph of tinc. Known for their striking blue color, a hue rather rare in…
www.joshsfrogs.com
New England Herpetoculture - Dendrobates tinctorius care sheet
www.neherpetoculture.com
Echoing the advice that I received in the past, places like NeHerp and Josh's Frog are financially driven. If they can sell you additional frogs, of course they will.
So, of course they will say you can have 2 or 3 darts in an 18 cube. Will the darts live. Yes. Will they thrive? Probably not.
What you'll quickly find out about the users of this forum is that their priority are the frogs. They want the absolute best conditions as serious hobbyists. If you're willing to cut corners, then by all means, go ahead. However, it isn't husbandry practice that would be echoed here.
So, in this case, you can either buy a new cube that's more suitable, think of a different species (e.g. I offered Mantellas as a very similar alternative), or just go forward with housing darts in the 18 cube.
