Due to the fact that my stock list leaves me with little room i was looking for a goby that stays around 3 inches or below that. Anyone know if the Tangaroa goby will sift sand or will he just burrow? Maybe a two spot if i find one that is eating well. Any thoughts one these guys, while researching i found that they are picky eaters but i already have a wide variety of both frozen and dried foods and am willing to buy more, I also found that they don't like more aggressive fish, does that mean faster swimming fish or a fish that would nip at him and give him a hard time, none of the fish i am planning on adding will be bottom dwellers or would the other fish still make him feel uncomfortable?