I've got a Micropelis at about a shade under 2" in my Rio 300 (48x20x24)
Mark was saying they quite slow growing and i should be okay for a while, i think maybe 12 months, i know it would depend on who its sharing with as well, but what do you think?
He's with Bichirs and Rope Fish, but i might be putting a few Parrots in, but not for ever,
sorry to hijack Cane
EDIT: not selling my Dat now, got too attached.