A vegetable flake food with Spirulina platensis algae (6%) for everyday feeding of herbivorous and omnivorous fish in freshwater and marine aquaria, including the popular Malawi mbuna cichlids, guppies, mollies and other livebearers. The nutritional value of spirulina ensures excellent condition in fish and regulates metabolic processes, particularly important in the case of herbivorous fish, whose digestive tract is very long and hence needs special dietary attention. A high content of natural carotenoids intensifies colours, has a positive effect on many physiological processes, and protects against free radicals.