I have had a 3.5" Two-Spot Bristletooth (AKA Blue Eye Kole) in QT since Thursday. This is my first saltwater fish, so I honestly don't know what to expect out of it at feeding. On Friday I offered 1/2 a cube of Frozen Mysis and 1/4 sheet of seaweed on a clip. She ate all of both. Saturday morning, she still looked pretty engorged, so I only offered seaweed. I offered some Mysis Sunday, but she showed no interest in it. She had pecked off all the seaweed from the clip by the end of the day Sunday, but really didn't eat much as most could be seen at the bottom of the tank. I also noted that she no longer looked "full". Monday morning I did a 20% water change and replaced the seaweed. She still showed no interest. This morning, the seaweed clip still looked untouched, so I offered 1/2 a cube of Frozen Mysis. She went into a feeding frenzy, eating it all in about 90 seconds, then turned to the seaweed clip and ate more than half of it over the next 5 minutes. She is now cruising around the tank happy with a very full belly. So she gorged on day 1, fasted for 3 days, and then gorged again on day 5. Is this normal? Should I expect gorge and fast eating from some saltwater fish?