I am about to order some roaches (120 mixed and one adult pair). I am wondering how big a container I need for them for now. I have a decent sized critter keeper with crickets in it right now (cant wait to get rid of those noisy things). Its the same size as the big one at petco with the two black tubes in it, but without the tubes(about 6.5X7.5X10 inches). Would that be big enough for now?