Spirulina flake brands

I'm looking to provide more variety to my fishes' diets. I currently only have glowlight tetras, but I am going to be adding corydoras and honey gouramis to complete the community. I know that honey gouramis do need a spirulina or algae-based food to give them the nutrition they need. I was thinking of going with a spirulina-based flake food and Omega One's Veggie Rounds to provide a good variety diet for not only the gouramis, but for the glowlights as well. As for corydoras, I already have Omega One's shrimp pellets and thinking of getting Hikari's Sinking Wafers as their main staple foods, and feeding bloodworms, brine shrimp, and tubifex worms for the entire tank as supplemental foods (already have bloodworms and brine shrimp).

I'm having difficulty finding a good brand of spirulina flake foods, so I thought to ask this question here. What are some good spirulina flake foods that I could use, preferably something that can be found off of Amazon or Chewy.

 

I've got some Ocean Nutrition spirulina flakes and my Rainbowfish love it. I did recently notice the fine print on the label which suggests that it's designed for herbivorous marine tropicals. Also the protein content is 50% which might be a bit high as a base diet for some fish but as just one of a variety of foods it should be fine.

 

This one. On their website it mentions freshwater fish as well:

Ocean Nutrition is a manufacturer of premium fish food for marine and fresh water tropical fish

 

I've got some Ocean Nutrition spirulina flakes and my Rainbowfish love it. I did recently notice the fine print on the label which suggests that it's designed for herbivorous marine tropicals. Also the protein content is 50% which might be a bit high as a base diet for some fish but as just one of a variety of foods it should be fine.

Do they float or sink?

 

Do they float or sink?

Float unless disturbed. I didn’t know there were sinking flakes?

 

I like Cobalt brand spirulina pellets and flakes. Chewy has the flakes but I don't think they've added the pellets last I checked.