My four fancy goldies tend to prefer flake-based foods, even though I know this is not recommended for them due to their swim bloat issue tendences, substantiated by my observations that seem to prove the sinking pellet type foods make them get a bit "lethargic" as they attempt to digest them; with the flakes, they show a much greater interest and swim around gobbling them up on the surface and as they float under the water like it's going out of style...

I have had experience thus far with the "cheaper" off-the-shelf type flake foods from Aqueon, Tetra and now a goldfish flake from a brand I'm not familiar with, but which I think is made by Hagen, which came with the little "Marina Goldfish Starter" container package we bought some time ago for an emergency situation in which we needed to get our Black Moor out of infected water and into a holding area. I also, at times, feed them Tetra's Goldfish Crisps and the Tetra Sinking Pellets, but, as I said, they definitely "react" better to flakes...

That being said, I was advised that NEW LINE SPECTRUM is an awesome, premium food line (and I am aware of the Hikari brand as well for fancy goldfish) that I could, and should, be feeding them, but I noticed some New Line Spectrum in Petco yesterday and they had the very small goldfish granules....which actually looked very small, and perhaps a bit too small for the four I keep now...

Does anyone have any suggestions for a premium flake-based food I can give my fancies? Does New Line Spectrum make a flake for goldies? Further, are the flake based diets from Tetra and Aqueon (or perhaps Wardley, Omega One, or any other off-the-shelf brand) adequate enough for daily nutrition if these aren't being raised to be true exotic show fish?

Thanks in advance!