Ocean Nutrition

BRSTV

Simple, Proven Feeding with Ocean Nutrition

Ocean Nutrition makes it easy to match the right food to the fish you keep with dependable formulas in flake, pellet, frozen, and clam-based options. Whether you are feeding a mixed reef, herbivores, or more selective marine fish, this lineup helps keep daily feeding simple and effective.

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8 Items

  1. Formula Two Fish Food Pellets (Small) - 7 oz
    Ocean Nutrition
    Formula Two Fish Food Pellets (Small) - 7 oz
    $16.51 $18.34

  2. Prime Reef Flakes Fish Food - 2.5 oz
    Ocean Nutrition
    Prime Reef Flakes Fish Food - 2.5 oz
    $10.69 $11.88

  3. Prime Reef - 30 Cubes (3.5 oz) Frozen Fish Food
    Ocean Nutrition
    Prime Reef - 30 Cubes (3.5 oz) Frozen Fish Food
    $7.05 $7.83

  4. Formula Two - 35 Cubes (3.5 oz) Frozen Fish Food
    Ocean Nutrition
    Formula Two - 35 Cubes (3.5 oz) Frozen Fish Food
    $7.05 $7.83

  5. Formula One - 35 Cubes (3.5 oz) Frozen Fish Food
    Ocean Nutrition
    Formula One - 35 Cubes (3.5 oz) Frozen Fish Food
    $7.05 $7.83

  6. Clams on the Half Shell - Flat Pack (32 oz) Frozen Fish Food
    Ocean Nutrition
    Clams on the Half Shell - Flat Pack (32 oz) Frozen Fish Food
    $42.46 $47.18

  7. Formula Two Flakes Fish Food - 2.5 oz
    Ocean Nutrition
    Formula Two Flakes Fish Food - 2.5 oz
    $10.69 $11.88

  8. Formula One Flakes Fish Food - 2.5 oz
    Ocean Nutrition
    Formula One Flakes Fish Food - 2.5 oz
    $10.69 $11.88

Ocean Nutrition Formula Guide

Use this quick table to understand what each Ocean Nutrition formula is designed to do and which fish are the best fit.

Food / Formula Ingredient Focus Best For
Formula One Flakes Meaty omnivore and carnivore-focused staple in flake form Clownfish, wrasses, damsels, angelfish, butterflyfish, and general community marine fish
Formula One Frozen Cubes Meaty frozen staple for carnivores and omnivores Mixed reef fish, fish-only tanks, picky marine fish, and fish that respond better to frozen foods
Formula Two Flakes Plant-forward herbivore blend in flake form Tangs, rabbitfish, algae grazers, and mixed tanks with herbivores
Formula Two Frozen Cubes Frozen herbivore formula with more vegetable-based nutrition Herbivorous marine fish, active grazers, and tanks that need more algae-based foods in rotation
Formula Two Pellets Plant-forward pellet formula for easy portion control Tangs, rabbitfish, omnivores with herbivore needs, and hobbyists who want a cleaner dry-food option
Prime Reef Flakes Balanced mixed-diet staple for a broad range of marine fish Community reef fish, mixed reef tanks, and everyday feeding for varied livestock
Prime Reef Frozen Cubes Balanced frozen formula for mixed feeding routines Mixed reef tanks, community fish, and hobbyists looking for one versatile frozen staple
Clams on the Half Shell Whole clam presentation for natural meaty feeding response Triggers, puffers, larger angels, butterflyfish, wrasses, and finicky fish that need extra encouragement to feed

Ocean Nutrition Feeding Recommendations by Tank Type

Match Ocean Nutrition foods to your tank type and feeding style. Use this quick guide to choose the right formulas and build a consistent feeding routine.

Tank Type or Fish Type Recommended Ocean Nutrition Formulas Recommended Feeding Schedule
Mixed Reef Tank
  • Prime Reef Flakes
  • Prime Reef Frozen Cubes
  • Formula One Frozen Cubes
  • Formula Two Frozen Cubes
Feed 1 to 2 times daily. Rotate Prime Reef as the staple with Formula One or Two for variety.
Soft Coral and LPS Reef Tank
  • Prime Reef Flakes
  • Prime Reef Frozen Cubes
  • Formula One Frozen Cubes
Feed once or twice daily. Use Prime Reef most often, supplement with Formula One.
SPS Reef Tank
  • Prime Reef Flakes
  • Prime Reef Frozen Cubes
  • Formula One Frozen Cubes
Feed small portions 1 to 2 times daily to help control nutrients.
Fish-Only Saltwater Tank
  • Formula One Flakes
  • Formula One Frozen Cubes
  • Prime Reef Flakes
  • Clams on the Half Shell
Feed 1 to 2 times daily. Offer clams a few times per week for enrichment.
Fish-Only with Herbivores
  • Formula Two Flakes
  • Formula Two Frozen Cubes
  • Formula Two Pellets
  • Prime Reef Flakes
Feed 2 smaller meals daily. Focus on Formula Two as the primary food.
Tangs and Rabbitfish
  • Formula Two Flakes
  • Formula Two Frozen Cubes
  • Formula Two Pellets
Feed 2 to 3 times daily when possible to support grazing behavior.
Angelfish and Butterflyfish
  • Prime Reef Frozen Cubes
  • Formula One Frozen Cubes
  • Clams on the Half Shell
Feed 1 to 2 times daily. Use clams occasionally to encourage feeding.
Triggers, Puffers, and Larger Predators
  • Formula One Frozen Cubes
  • Clams on the Half Shell
Feed once daily or every other day depending on size and species.
Clownfish, Wrasses, and Community Reef Fish
  • Prime Reef Flakes
  • Prime Reef Frozen Cubes
  • Formula One Flakes
  • Formula One Frozen Cubes
Feed 1 to 2 times daily. Alternate flakes and frozen foods.
Picky or Newly Acquired Marine Fish
  • Prime Reef Frozen Cubes
  • Formula One Frozen Cubes
  • Clams on the Half Shell
Feed small portions 2 times daily. Start with frozen foods, then introduce variety.

Tip: Rotating multiple food types helps improve feeding response and provides a more balanced diet for most marine fish.

Ocean Nutrition Fish Food FAQ

What types of fish food does Ocean Nutrition make?

Ocean Nutrition offers several popular food formats for saltwater aquariums, including flakes, pellets, frozen cube foods, and specialty frozen options like clams on the half shell. The current Bulk Reef Supply brand page includes all of these major formats.

What is the difference between Formula One and Formula Two?

In general, Formula One is commonly chosen for carnivorous and omnivorous marine fish, while Formula Two is typically preferred for herbivores and fish that benefit from more plant-forward feeding. This makes it easier to match the food to the dietary needs of your tank.

Is Ocean Nutrition a good choice for reef tanks?

Yes. Ocean Nutrition foods are a solid option for many reef tanks because the lineup includes several easy-to-use foods that work well for a variety of marine fish. With flakes, pellets, frozen foods, and specialty feeding options available, hobbyists can choose the format that best fits their livestock and routine.

What Ocean Nutrition products are currently on the Bulk Reef Supply page?

The current Bulk Reef Supply Ocean Nutrition page includes flakes, pellets, frozen foods, and shell-on options such as clams on the half shell, giving hobbyists multiple feeding formats to choose from in one place.

Should I choose flakes, pellets, or frozen food for my saltwater fish?

That depends on your fish, your feeding routine, and the kind of response you want during feeding time. Flakes are great for quick daily feedings, pellets help with portion control, and frozen foods can be an excellent choice for more substantial meals or finicky eaters. Many hobbyists keep more than one format on hand for variety.