Tetra was the first popular commercial flake food, but that doesn't mean it's the best. I think if you tried giving your fish something like Omega One they would find it more enticing. It smells a lot "fishier" and the ingredients are obviously less of a filler nature.
Compare the basic freshwater formulas...
Omega One Freshwater Flakes:
Ingredients: Whole Salmon, Halibut, Black Cod, Whole Herring, Seafood mix (Including Krill, Rockfish, Shrimp, Squid, Clams and Octopus), Wheat Flour, Wheat Gluten, Soy Flour, Fresh Kelp, Lecithin, Astraxanthin, L-ascorbyl-2-pophosphate (Vitamin C) Natural and Artificial Colors, Vitamins A, D, E, K3, B1, B2, B6, B12, Niacin, Pantothenic Acid, Folic Acid, Biotin, Inositol, Ethoxyquin and Naturox (Natural mixed to tocopherols and Rosemary Extract) as Antioxidants.
Tetramin Ingredients:
Fish meal, torula dried yeast, ground brown rice, shrimp meal, wheat gluten, dried potato products, feeding oat meal, dehulled soybean meal,soybean oil, fish oil, algae meal, sorbitol, lecithin, gelatin, l-ascorbyl-2-polyphosphate (vitamin C). Natural and artificial colors. Ethoxyquin as a preservative.
That being said, if you like to feed often, probably best to go with something less rich. I only feed once a day, but it's denser higher quality food than the standard Tetra or Wardley.
Exactly
Sent from my iPhone using MonsterAquariaNetwork app