Hey everyone! Recently I have had some trouble feeding my Jack Dempsey. I usually feed him Hikari Bio-gold medium sized pellets, but I recently switched over to Hikari Gold large pellets (I would have gotten large Bio-Gold, but I can't find any). My JD is 24cm long so I assumed the switch would have no problem. He attacks the pellets like he would any food, but he spits them out after chewing them a little. He hasn't eaten the pellets in a week, but I gave him a nightcrawler 2 days ago. Any ideas why he won't eat the pellets?