what did the initial 75 bass have to eat?
they probably were very hungry and ate just about every thing you added after them, Most notably the 1-4" CNBG and Redear.
If they did not get them the next 15 LMB did.
You might have to continue stocking adult sunfish to get them established and your minnows are probably toast.
this is just my novice point of view, I'll let the experts give you some real suggestions.
