You can order a single bag of anything from Optimal. Sometimes they have specials. Check their web site regularly.
In the Purena Aquamax I now feed the MVP which is a variable size product. Basically it has 500 and 600 sizes and smaller ones not quite as small as AM400. It is a good all around size to feed multiple size fish. I used to feed a mix of AM500 and AM600 with a little 400 mixed in during the year when there were very small BG near the shore line. When I went to MVP I will mix a little 400 or the largest size of Optimal Starter.
I only feed around 3# per acre so subsequently my fish are always hungry and will clean up any type of feed I throw out. If I run out of my regular feed I will feed some 32% feed in a pinch and the fish eat it just fine also.
