One food for the whole community — without the guesswork. A mixed tank is a feeding headache: tetras, rasboras, barbs, and corys all have different needs, and juggling three containers gets old fast. Feed the wrong thing and someone always misses out. NorthFin Community Formula is an all-in-one daily diet built for exactly this — a small 0.5–1mm slow-sinking pellet with balanced marine nutrition every fish in a community tank can thrive on, and no artificial dyes or fillers. Community Formula comes from NorthFin, created by Darius Chodocinskas, an aquatic specialist with more than 30 years of experience who grew frustrated by the fillers, hormones, and artificial pigments in ordinary fish food. NorthFin is built on whole-ingredient marine nutrition — whole Antarctic krill, herring, and sardine meal, plus whole organic kelp — steam-extruded and made in Canada to preserve nutrients, stay easily digestible, and keep your water clean. No fillers, no hormones, no artificial pigments or dyes. Feed 1–2 times a day. Give only what disappears in a few minutes. Let the small pellets reach mid-water and bottom feeders alike. Simplify feeding, and let everyone eat well. Add to cart. Why NorthFin Community Formula Real color, naturally — Antarctic krill, astaxanthin, and spirulina bring out the natural color of every fish in the tank, with no artificial dyes. Whole-ingredient nutrition — a balanced blend of whole krill, herring, and sardine meal plus organic kelp meets the varied needs of a mixed community in a single pellet. Cleaner water — steam-extruded, easily digestible pellets mean low waste and clearer water in busy community tanks. No junk — no fillers, no hormones, no artificial pigments — just whole-food marine nutrition every resident can thrive on. Best For Mixed community aquariums — tetras, rasboras, barbs, danios, livebearers, corydoras, and other small to mid-size community fish that share a tank. The small 0.5–1mm slow-sinking pellet is sized for small mouths and drifts down so mid-water and bottom feeders all get their share. Key Ingredients Antarctic Krill — high-quality protein, amino acids, vitamins, and minerals, plus natural carotenoids and astaxanthin to bring out rich, vibrant color. High Omega-3 Herring Meal — top-grade fish meal with a higher concentration of DHA for healthy development, growth, and coloration. Certified Organic Kelp — marine seaweed supplying roughly 60 minerals, 21 amino acids, and 12 vitamins to improve overall health and activity. Spirulina — natural blue-green algae rich in protein, vitamins, and minerals that supports immune function, with natural pigments for color enhancement. Calcium Montmorillonite Clay — provides 67 minerals and essential trace elements to help correct dietary deficiencies. Feeding Feed 1–2 times daily, offering only as much as your fish will consume within a few minutes. Remove any uneaten food to keep water quality high. For the best condition and color, rotate with other NorthFin formulas through the week for dietary variety. Ingredients Whole Antarctic Krill Meal, High Omega-3 (DHA) Herring Meal, Whole Sardine Meal, Wheat Flour, Kelp, Spirulina, Garlic, Astaxanthin (Haematococcus Algae), Calcium Montmorillonite Clay, Vitamin A Acetate, L-Ascorbyl-2-Polyphosphate (Source of Vitamin C), D-Activated Animal-Sterol (D3), DL Alpha-tocopherol (E), Vitamin B12 Supplement, Riboflavin Supplement, Niacin, Pantothenic Acid, Thiamine, Calcium Pantothenate, Pyridoxine Hydrochloride, Folic Acid, Biotin, Choline Chloride, Cobalt Sulfate, Ferrous Sulfate, Manganese Sulfate, Selenium, Zinc. Guaranteed Analysis Crude Protein (Min): 40%Crude Fat (Min): 7%Crude Fiber (Max): 5%Moisture (Max): 9%Ash (Max): 9% FAQ How much should I feed a community tank? Feed once or twice a day, offering only as much as the whole tank clears within a few minutes so every fish gets a share without leftovers settling on the substrate. Will it cloud my water? No. The pellets are highly digestible and low-waste, and they hold together as they slowly sink rather than breaking apart and fouling the water. Are the colors from dyes? No. The color comes from natural sources like krill-derived astaxanthin and spirulina — never artificial pigments or dyes.
