I'm with Nancy on this one. Get some practice with other marine inverts then go for the Bimac. I've never had one (cos I live waaaaaaay down south) but they seem to be about the most keeper friendly (excepting our Squidgy of course....he knows how much we like to play get the octi out of the drains, the neighbouring tank, the walkway, the other neighbouring tank, the drains........so he tries to play it most days ....just for us!!)
J