QUOTE (Lianne_ @ Nov 26 2009, 02:51 PM)

Can you give us an update on this fishes personality and if you are enjoying it? I think it's fascinating and would like to consider one for a 30 gallon+refugium tank. I am wondering if they become less shy. Could I have it in a tank with a pearly jawfish?
i've had my mag goby/randall's pistol shrimp pair for two and a half weeks now. mine hid for only a day. since then, it's almost always out. it rests all day, most of the time hanging halfway out of his burrow. sometimes it will completely emerge, lying along the sand near his burrow or propped up on an empty scallop shell. occasionally it'll cruise/putter along the sand looking for copepods and amphipods. it's not much of a swimmer, except during feeding time when it'll swoop onto a morsel passing by. i think a post on reefbuilders said that kevin kohen of liveaquaria stated that they sift sand thru their gills looking for a meal. i have yet to witness that behavior.
the mag has been much more entertaining and engaging than both a yasha hashe and dracula shrimp goby that i had. both regrettably committed
hari kari by jumping. both perpetually hid. the only consolation is that the yasha's old randalli pistol shrimp paired up w/my new one and now the three of them live in the burrow.
i read with interest that kevin kohen keeps a pair of mag shrimp gobies w/ randalli pistol, a candy basslet, and a mcculloch clownfish in his office aquarium. that's pretty cool b/c i also have a candy basslet in my tank, but no mcculloch clown

. those and a yellow assessor share the tank and there is absolutely no aggression at all.
i've never kept a pearly jawfish, so i can't comment on compatibility. i've kept a blue spotted jaw, but not at the same time as a shrimp goby. maybe if you introduce the mag goby and his shrimp partner on the side opposite from the jaw's burrow, they may be fine. lower them in a container and keep the container in place for a while so that they won't move away. by using this technique, i was rewarded in the past by the shrimp digging his burrow front and center along the front of the tank, so that i could see the entire u-shaped burrow. i've read that some jaws may boot shrimp gobies out of their burrow, so keep that in mind. good luck!