My first question is did you put the shark in that 60 gallon aquarium you were talking about a few days ago? And second, why the heck did you buy the shark a few days before you knew you were going on vacation?!... Also, you should have read about that before you went to the LFS's and got it! AS of feeding it...now that you have it... I would ask maybe a trusted friend or neighbor (yeah, right, a trusted NEIGHBOR!!lol, not today!) to feed the poor thing while you are gone... everyother day will work... and another thing don't try to buy one of those vacation feeder at the LFSs for FW fish... they don't even work for the freshies!!