I do have another multibar, probably my last unless this one actually eats with any gumption. From Quality Marine. While I understand the suggestion, it's not like I'm swapping foods daily. If I notice a fish eating one food, I'll offer it daily in addition to other things to see what else piques their interest. I figure offering multiple things during feeding time gets the brain working, like, "hey, this stuff showed up when food showed up, maybe it's food," kinda thinking. I tried to start the previous multies on live baby brine at first, then mixing in things like arctipods and calanus, but even with the pure brine they never seemed to stuff themselves. Maybe I need to culture rotifers or something, I don't know.