yes you will have to feed it directly, every 2 days will be fine, not every day, as for the cut up shrimp .... maybe its not hungry try again in 2 days, you can feed it brine and mysis if you want, if you feeding it live brine (which is fun to watch) use a net to feed it put the brine in the net and just put the net over the anomie, making a dome around the anome where the brine has really no where to go....
good luck