So the worm question is simple i dont see why someone didnt answer you its normal for a pac man to not eat when you get them try everyday and wiggle it around to help movement so it wants to go for it more. pac man even young can go a bit without food just keep trying and make sure its pooping. Next your set up is great you did amazing on your research and you should be fine there. Hope this helps if you go more questions ill try to pop on to answer them more. I forgot to add i like pineapple for a name because then you can get another and name them apple and you can sing that meme song PenPineApplePen