as smartlove_518 said varying the diet is the key..any aro would readily take to crickets and worms..i feed mine shrimp,gut loaded crickets,gut loaded feeder fish that has been quarantined for a week(twice a month) and beef heart thrice a month..i even sometimes crush half a tab of vitamins and garlic and soak the shrimp for 15min in it..seems to do good..