I just got a new Betta the other day and he hasn't been eating the normal, everyday betta fish food. I gave him a worm and he ate that up in a heartbeat. Bob will sniff the regular food, put it in mouth, but spit right back out again and forget about it. I know that feeding him worms on a daily basis is not a good thing for them. So what should I do about him not eating his normal food?