I can recall years ago when I kept tropicals as a boy using nothing but Tetra's TetraFin flakes; this company was like the Rolls-Royce of the hobby back in the day. Since then, from all accounts, it has become mass-marketed bottom-rung stuff, including their once-coveted Whisper filter line...
That being said, I was feeding my goldfish their multi-colored "color enhancing" flakes as well, and the container itself is very convenient with its sliding "hatch door" so you don't have to touch the food...however, since then I had been advised to stay away from their foods due to what's in them as compared to the Hikaris, New Life Spectrums and Omega Ones of the world...I have since bought a container of the Omega One Goldfish Flakes which are supposed to have a more "premium" seafood content in them rather than fillers, but to be honest I don't see my goldfish reacting any "more interested" in these flakes compared to others...
I want to try New Life Spectrum's GENERAL FRESHWATER FLAKES or their GOLDFISH SINKING PELLETS, however with regard to the pellets, it seems any time I tried feeding these to the little guys -- via Tetra's own GOLDFISH SINKING GRANULES or their GOLDFISH CRISPS -- they don't seem to do as well with digestion as compared to the flake foods...it's the strangest thing, especially for goldfish which are SUPPOSED to take to pellets and sinking foods, but my guys tend to get "lethargic" and "confused" when "chewing" on the pellets...they don't seem to go down well, but I don't know if that's just because they were Tetra brand...I am going to eventually get a can of New Life Spectrum's goldfish pellets, but until then I am still feeding the Omega One Goldfish Flakes...
As for the suggestion of crumbling up the big flakes in your hand -- that's a good tip, and something I have been doing with almost every brand of flake I buy (even these Omega Ones) as my goldfish have an issue with larger pieces of food and getting them into their mouths (if you can believe that, given the...well..."big mouth" eating nature of these fish
)...