Ingredients of the Hikari algae wafers which does include spirulina:
White fish meal, wheat flour, wheat-germ meal, alpha starch, dehydrated alfalfa meal, soybean meal, fish oil, brewer's dried yeast, shrimp meal, spirulina, salt, carotene, monopotassium phosphate, vitamin A, vitamin D3, vitamin E, Vitamin K3, thiamine mononitrate, riboflavin, niacin, pantothenic acid, pyridoxine, biotin, folic acid, inositol, choline chloride, l-ascorbyl-2-polyphosphate (stabilized vitamin C), magnesium sulfate, manganese sulfate, zinc sulfate, iron sulfate, calcium iodate, cobalt sulfate, aluminum hydroxide.
Guaranteed Analysis %:
Crude Protein (minimum) 32
Moisture (maximum) 10
Crude Fiber (maximum) 5
Crude Fat (minimum) 4