I will be picking up my new baby 3=4" Florida gar up in a few hours but I have one problem... what do I feed him? Is it ok to buy some guppies at the fish store for him? I obviously don't have time or another tank to quarantine them, so what should I do. They need constant live food... Do I go to a tackle shop and get minnows... or do those need to be quarantined also? Please help