shrimp can be fed on cut market prawns.4 acclimatising the shrimp,slowly add tank water to the bag the shrimp is in,this reduces osmotic shock.R u intending to keep corals?maybe should leave out the goby as i have try the blue cheek and all the sand it sifts always falls on my leather.Maybe , u could get the opinions of other reefers, i am a newbie, jus started a year and stiil doing homework.