I think the carnisticks and massivore have a very dense calorie count... any fish I have that enjoy the massivore and carn sticks have takin off in growth ten fold but not ALL of my fish love it... some do and some dont... never tried NLS but from J jaws7777 pics I'll havto check it out.. some good looking ingrediants
If your having success with the hikari stuff no need to discontinue using it. Nls has some good ingredients but at the end of the day i wouldnt go crazy.