A bag of feed every week. In 4.5 months (19+ weeks), that's 760 lbs of feed, and fingerling would be around $1/lb. As many things in life, if you want it bad enough and willing to pay for it, great things are possible.
Assume a 1.5" BG weighs nil, it would be <.01 lb. A 7.5" BG would be ~.34lb per Wr eqn. If you go by the rule of thumb that 4 lbs of feed = 1 lb weight gain, then each fish ate ~1.35 lbs of something. Since you stocked 2000 CNBG, that's 2700 lbs. since you hadn't stocked predators, let's say they all lived. So you paid for ~30% of their growth. Pellets are indeed great, but those fish found a lot on their own also.
