I go on-line to TSC and order Aquamax and have it sent to the nearest store (about 5 miles here) and pick it up free of shipping.
Any store to offers Purina produces can order and you can pick up at that store, or at lest that is the way it works here in Michigan.
Hope this helps!

half-acre pond, LMB, HBG, BG, GSH and CC ....goal is to
have fun fishing. And I subscribe!