BillD
Aquarium Advice Addict
While yellow labs are classed with mbuna, they are omnivores, so they can handle more animal matter in their diet than the usual grazers. How much you feed depends on a number of thing. If the fish are juveniles, and you want them to grow quickly feed them more often. Be aware that this may result in the need for more frequent or larger water changes. Keep in mind also that any food high in spirulina should also be high in protein, as spirulina is over 60% protein.