Spirulina 20 Fish Food Flakes

SPIRULINA is a blue-green algae rich in raw protein and many vitamins. It naturally contains color-enhancing pigments, all essential fatty acids, the eight amino acids required for complete nutrition, and a whole range of minerals. SPIRULINA 20 flakes contain a full 20% spirulina and provide a complete, high protein diet for freshwater fish, marine fish, goldfish, crustaceans, and invertebrates. Research has shown that fresh and saltwater fish exhibit superior growth, maturity, energetic behavior, and more elegant coloring when fed spirulina. It is also well documented that spirulina improves egg production and hatching rates, stimulates the reproductive processes, increases survival rates of younger fish, and arouses the appetite of fish. You’ll see an amazing difference when you feed SPIRULINA 20!


  • Perfect for African Cichlids, Swordtails, Platies, Guppies, Mollies, Saltwater Angels, and Tangs.
  • For daily feeding of fresh or saltwater fish.
  • Natural color enhancer.


Spirulina 20 Commercial Spot
Zoo Med’s Spirulina 20 is a hallmark of Zoo Med quality products. A favorite among fish hobbyist for 25 years! Check out this commercial for Spirulina 20 that Zoo Med made for ACA’s 2011 convention.


Product Options

Item Number: AF-S05
Size: 0.5 oz
Item Number: AF-S1
Size: 1.0 oz
Item Number: AF-S2
Size: 2.0 oz
Item Number: AF-S4
Size: 4.0 oz
Item Number: AF-S20
Size: 2.0 lbs
Item Number: AF-S50
Size: 5.0 lbs
Item Number: AF-S100
Size: 10.0 lbs


Feed 2 to 4 times daily. Do not feed more than can be eaten in a 5 minute period.

Additional Information


“We were thrilled to see Spirulina 20 back on the market! Even better, the line has expanded to cover Earthworm and Plankton flakes. Our fish took to both new foods right away and have done very well on them. We’re happy to make room on our shelves for the new foods.”
– Eric (The World of Wet Pets)



Salmon Fish Meal, Spirulina Algae Meal, Soy Flour, Wheat Flour, Corn Starch, Dried Krill Meal, Shrimp Meal, Plankton Meal, Lecithin, Vegetable Oil, Vitamin A Supplement, Vitamin B12 Supplement, Vitamin D3 Supplement, Vitamin E Supplement, L-Ascorbyl-2-Polyphosphate (stabilized Vitamin C).

Guaranteed Analysis

Crude Protein (min) 45.0%
Crude Fat (min) 4.0%
Crude Fiber (max) 3.0%
Moisture (max) 8.0%