I have had a hippo tang for one week today in my QT. She is small, not quite 2 inches. I have read a good bit on them and read they are shy and just chill mostly. Well, she does. Just hangs in one corner of the tank then hides behind the filter. I feed her brine shrimp. I try to feed her seaweed every other day but she doesn't go around it. She needs this, right? Will she like it more the older she gets? What does everyone else's blue hippos eat?