I have not ordered optimal yet because I’m about to go away and want to time the shipment for when I get back. It’s been interesting to watch the HSB. They will occasionally rise up as if they are going to take a pellet but then turn away at the last second. I’m convinced that they either are too preoccupied with the fatheads right now or they don’t like the smell of the pellets - or both. I actually have some of the cheaper pellets from tractor supply and have tried those too just to test and I would say they have little interest in those either. Time will tell if optimal can get them to eat. I’m hopeful since I really enjoy feeding my fish. My channels are doing great. They are pigs and don’t seem to care what I throw at them.