I have a pink grammy kissing fish, and lately whenever I bring home a new fish he auctually EATS it! the people at the pet store said that they were really good will almost all other fish, including the ones I brought home. I've also been noticing that sometimes whenever I look at it, it jumps out of it's tank, scaring the crap out of me. he has done this about 3 times so far, and has tried to jump out but hasn't made it about 10 other times. any suggestions as to why this is happening?