They definitely try your nerves. I've got a male bipartitus that I didn;t see for two weeks after putting him in, then only for a few hours, not again for another week or so, then for a few hours. Now he's out every day. make sure it's got some live stuff in the tank to eat. If she can look around and find some tasty critters and hunt them herself, she'll acclimate better. I've done things like add cheato to the tank becuase I knew it was loaded in pods. When mine have gotten used to hunting, they've started turning to other foods. My LFS makes a food mix that my bipartitus started attacking the first time I fed it (first time he's shown much interest in non living foods). Keep an eye on other fishes picking on her until she's acclimated better. If her sleep cycle is still off, you may consider slowly changing the lighting cycle to help out. My theory is that when they ship from Africa or Vietnam, they are on a different sleep cycle, which has them awake when my lights are off. Without being able to see, they go back to the sand, and slowly starve. When they start hunting early, I've had the best luck with them.