I also have used Algaemax, and HBH super soft spirlina from Jehmco (right in your neighborhood.
And some people may find this funny, but the I have found the HBH goldfish pellets, work well for omnivores cichlids with a tendency toward the vegetarian side, those such as Vieja/Maskaheros/Paraneetroplus/Chuco, and Herichthys.
Just read the ingredient list on YFS looks high on the fats side. Fats aren't good for tropical fish at least not that much fat.
I think NLS is around 5 percent fats.