I tried pellets many moons ago, they seemed to prefer the flake so it's what I stayed with. Fish are different size, some are maybe a foot in length while others are an inch or two. There is a new crop of fish every year in the pond, some make it, some get eaten by frogs. I dragged a snake out of their last year. Plus that damn Blue Heron killed some of my biggest fish last year....bastard...have to check but I think I got a a good deal @$45 Net weight 4.52 pounds vs 7 ounces at $15.59 ...I’m surprise that you’re using flake instead of pellet for your goldfish ..what size are they?