mine hasn't eaten in 2 weeks.. i'm going to try to bump up the temp.. hopefully she'll take food after that.. mine usually takes the shrimp then spits it out after a couple of seconds like she didn't like the taste, but she was eating shrimp & mussels like a pig when i 1st got him.. i've got a goldfish there with him now but not showing any interest..
Try and hatch some brine shrimp and see if they respond to that... it's usually a good way to get them kick started since they both still are fairly small I beleive.