Looks nice , don't bother with live foods as you've already learnt disease is always a risk plus it's hard work getting them off live once there hooked.
Try feeding bloodworm , prawn/shrimp , muscles and whitefish ,once he's taking them confidently start to season the fresh foods with crushed pellets to get him used to the taste , then gradually start to stuff larger bits of pellets into it ,eventually you'll have a pellet trained jardini that eats fresh foods too