Since you are in a deep freeze right how, I would keep it in the garage. Three pounds is a lot of flake. Without knowing your feeding routine, maybe incorporating a bit each day into whatever you use. I often crush flake and add to decapped brine shrimp. My nanos and fry love this combo. I have also fed excess flake to my live food cultures.
60g - Lot's of endlers and 4 P.Taeniatus Moliwe (and babies)
20g Long - a few endlers and RCS
20g Long - Chilli Rasboras, Scarlet Badis, RCS
29g SA biotope - many SA inhabitants