FWIW, here's my feed test. I fed the same amount of feed to 3 different groups of HBG in 3 different cages. Same number of fish, same size in each cage. This is 3 months of growth. Fish were 2" when the test was started. I didn't weigh the feed, I just fed them a small coffee can per day, split into 2 feedings.
Top one Sportsmans Choice
Middle Aquamax 500
Bottom Optimal BG Jr.
That was enough for me, but the other thing that I saw was the first year feeding Optimal vs feeding Purina was about a 50% reduction in FA in the pond. Could that be attributed to the year to year conditions? Maybe but I don't think so.
What year was the test done? I can't remember, but I do know it was before Optimal BG Jr. was out on the market.

![[Linked Image from i.imgur.com]](https://i.imgur.com/oKryhqz.jpg)