Best* Saltwater Fish Food

If you’re looking for some of the best saltwater fish food, you’ve come to the right place. This list of saltwater fish food is the top-sellers most frequently purchased by Petco’s fish parent customers. Here you’ll discover many options for what to feed saltwater fish.

 
 

Best Saltwater Fish Food: Pet Parent Faves

San Francisco Bay Brand Frozen Brine Shrimp

Best Frozen Brine Shrimp

San Francisco Bay Brand

Frozen Brine Shrimp

Brine shrimp can be an excellent frozen saltwater fish food source for picky eaters who may not be ready to convert to pellet or flake food. Once thawed, San Francisco Bay Brand Frozen Brine Shrimp are easily recognized as food for many species of freshwater and saltwater fish and invertebrates. Brine shrimp are an excellent protein source for stimulating growth and coloration.

Features:
  • Available in 4-oz. and 8-oz. packs
  • Natural, frozen fresh
  • Great stimulant for triggering feeding instincts
  • Excellent for finicky feeders
  • Excellent for freshwater and saltwater fish
  • Stimulates growth and support coloration

San Francisco Bay Brand Frozen Mysis Shrimp

Best Frozen Mysis Shrimp

San Francisco Bay Brand

Frozen Mysis Shrimp

Mysis Shrimp are known to be one of the top prey foods to offer even the most finicky of fish, and frozen Mysis shrimp are one of the few frozen saltwater fish foods that seahorses often regularly take to. The San Francisco Bay Brand Frozen Mysis Shrimp is a highly nutritious protein source that can help support high energy levels, growth and coloration in your aquatic life

Features:
  • Available in 3.5-oz. packs
  • Natural, highly nutritious
  • Great for freshwater and saltwater fish
  • Excellent for saltwater fish and reef aquariums
  • Stimulates growth and supports coloration

San Francisco Bay Brand Frozen Marine Cuisine

Best Frozen Marine Carnivore Assortment

San Francisco Bay Brand

Frozen Marine Cuisine

The San Francisco Bay Brand Frozen Marine Cuisine is a blend of brine shrimp, krill, spirulina and other natural seafood ingredients. It contains vitamins specifically formulated for omnivorous and carnivorous saltwater fish. This diet contains stabilized Vitamin C and essential nutrients for supporting growth, coloration and energy levels. The texture and ingredients of this saltwater fish food were chosen to mimic food sources fish would find on the coral reef, encouraging your fish to take to it quickly.

Features:
  • Available in 3.5-oz. packs
  • Natural, highly nutritious
  • Contains stabilized vitamin C
  • Promotes proper growth and coloration
  • Excellent for saltwater fish and reef aquariums

San Francisco Bay Brand Frozen Saltwater Multipack

Best Frozen Marine Fish Assortment

San Francisco Bay Brand

Frozen Saltwater Multipack

For the aquarium with multiple types of fish and the pet parent wanting the ultimate variety for their fishes’ diet, the San Francisco Bay Brand Frozen Saltwater Multipack may be an excellent choice. This multi-pack includes six cubes each of four different types of frozen saltwater fish food cubes—including Marine Cuisine, Emerald Entrée, Plankton and Omega Brine Shrimp. All foods in this assortment are natural and highly nutritious for marine fish of various species.

Features:
  • Available in 3.5-oz. packs
  • Natural, highly nutritious
  • Excellent for mixed species aquariums
  • Stimulates growth and support coloration
  • Excellent for all saltwater fish

Omega One Super Veggie Green Seaweed

Best Seaweed

Omega One

Super Veggie Green Seaweed

Many types of marine fish—such as Tangs—are grazers and enjoy picking at seaweed and other vegetation throughout the day. Omega One Super Veggie Green Seaweed comes in a re-sealable bag and pre-cut pieces for convenience and waste reduction. This marine aquarium food is low in ash, includes natural fats and protein and is rich in vitamins and minerals. The sheets will also not cloud water, so there’s less mess in your aquarium.

Features:
  • Available in 0.8-oz. packs
  • An abundance and variety of fresh seafood protein
  • Fresh, natural fats
  • Low in ash—15% maximum
  • Designed not to cloud water

New Life Spectrum Marine Fish Tropical Food Pellets

Best Marine Pellet Food

New Life Spectrum

Marine Fish Tropical Food Pellets

The New Life Spectrum Marine Fish Tropical Food Pellets include a variety of high-quality ingredients and no artificial colors, flavors or preservatives. Easily digestible marine proteins such as krill, squid, algae, seaweed and garlic for immune health. These are just some natural ingredients that go into this pelleted formula that supports vibrant color and wellbeing. This food has even been shown to reverse malnutrition related to Head and Lateral Line Erosion—making it one of the best foods for reef fish.

Features:
  • Available in 2.8-oz. and 5.3-oz. packs
  • Negative buoyancy, so pellets do not sink
  • High-quality, easily digestible marine proteins, algae and seaweed/li>
  • Naturally enhances marine fish color with no added hormones
  • No artificial colors, flavors or preservatives
  • Included garlic for immune system health
  • Manufactured in the USA

Omega One Garlic Marine Flakes

Best Marine Flake Food

Omega One

Garlic Marine Flakes

Flake foods offer a variety of ingredients in an easy-to-feed formula. The Omega One Garlic Marine Flakes include a mix of seafood, spirulina, garlic and omega-3 fatty acids for health and increased palatability. This flake food is the only dry saltwater fish food in the world made directly from fresh seafood that contains no meals or pre-processed proteins. Low in ash and starch, this reef aquarium food can help reduce fish waste and not cloud water.

Features:
  • Available in 1-oz. and 2.2-oz. packs
  • The only dry fish food made directly from fresh seafood
  • Rich in omega-3 fatty acids
  • Free of meals or pre-processed protein
  • Contains hand-harvested ocean kelp and spirulina
  • Garlic for palatability and parasite resistance
  • No artificial preservatives or flavors
  • Significantly less starch, reducing fish waste

Sera Marine Granules Nature Food

Best Marine Granules

Sera

Marine Granules Nature Food

The Sera Marine Granules Nature Food is formulated for marine fish in the form of granules and is balanced so that it can be fed as a staple diet. The granules are soft and slow sinking, making them ideal for fish feeding in the middle and bottom areas of the aquarium. These easy-to-digest granules are free from dyes and preservatives and are naturally rich in iodine.

Features:
  • Available in 1.4-oz. packs
  • Natural granules
  • Free from dyes and preservatives
  • Soften quickly
  • Easy to digest
  • Staple food

Fluval Saki-Hikari Marine Carnivore Probiotic Enhanced Diet

Best Marine Pellets for Carnivores

Hikari

Saki-Hikari Marine Carnivore Probiotic Enhanced Diet

Hikari Saki-Hikari Marine Carnivore Probiotic Enhanced Diet is a probiotic enhanced sinking pellet formulated for the nutritional needs of carnivorous marine fish. The unique ingredients included in this marine aquarium food formula are easily digestible and chosen for optimum health and growth of your fish. The pellet has a sponge-like texture and high palatability to encourage an increased feeding response for rapid growth.

Features:
  • Available in 1.41-oz. packs
  • Scientifically formulated with a proprietary probiotic to help marine fish look their best and live a long life
  • Developed to bring out the colors of marine fish by using a higher natural ingredient content
  • Offers rapid acceptance and easy digestion
  • The world’s first probiotic enhanced marine fish diet
  • Helps reduce waste volumes and size, reducing the load on aquarium bio-action
  • A sponge-like pellet with a desirable texture that helps trigger a natural feeding response

Sera Marine O-Nip Nature Food

Best Marine Tablets

Sera

Marine O-Nip Nature Food

The Sera Marine O-Nip Nature Food is a unique option for feeding your fish as the tablets can be pressed to the bottom or side of the aquarium to stick in place for fish to feed. These natural saltwater fish food tablets are free of dyes and preservatives and include bloodworms, krill and tubifex worms. In aquariums with shy fish, these stick-on tablets can be a great way to coax fish out of hiding to come to eat instead of waiting on food to fall into their caves and crevices that can be hard to reach.

Features:
  • Available in 2.1-oz. packs
  • Stick-on tablets
  • Free from dyes and preservatives
  • Watch even shy fish eat right in front of you

Hikari Saki-Hikari Marine Herbivore Probiotic Enhanced Diet

Best Marine Pellets for Herbivores

Hikari

Saki-Hikari Marine Herbivore Probiotic Enhanced Diet

Herbivorous fish have special dietary requirements, and the Hikari Saki-Hikari Marine Herbivore Probiotic Enhanced Diet goes above and beyond for herbivorous veggie-loving fish. This pelleted diet has a sponge-like texture designed to be desirable to fish and helps attract them to the food, encouraging rapid growth. A unique blend of ingredients and Hikari’s proprietary probiotic “Hikari-Germ” in this marine aquarium food can help improve the overall wellbeing and longevity of your aquatic life.

Features:
  • Available in 3.17-oz. packs
  • Scientifically formulated with a proprietary probiotic to help marine fish look their best and live a long life
  • Developed to bring out the colors of marine fish by using a higher natural ingredient content
  • Offers rapid acceptance and easy digestion
  • The world’s first probiotic enhanced marine fish diet
  • Helps reduce waste volumes and size, reducing the load on aquarium bio-action
  • A sponge-like pellet with a desirable texture that helps trigger a natural feeding response

Hikari Bio-Pure FD Brine Shrimp

Best Freeze-Dried Brine Shrimp

Hikari

Bio-Pure FD Brine Shrimp

The Hikari Bio-Pure FD Brine Shrimp are multi-vitamin enriched to promote extraordinary wellbeing and color in tropical and marine fish. These freeze-dried brine shrimps are free of parasites and harmful bacteria, as well as artificial colors and preservatives—but they’re full of nutrition and flavor. Brine shrimp can be fed as a daily frozen saltwater fish food or as a treat for your pets. They are freeze-dried with all the same texture and taste of live brine shrimp preserved.

Features:
  • Available in 0.42-oz. packs
  • Freeze-dried food with fresh nutrition and flavor
  • Superior taste and texture in a convenient, long-lasting formula
  • No artificial colors or preservatives
  • Multi-vitamin enriched food

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Learn More About Best Saltwater Fish Food

Some saltwater fish are carnivores, others are herbivores and some are omnivores. Most herbivorous saltwater fish will eat macroalgae and microalgae, although some species prefer specific types—from red, green, brown and blue algae. In comparison, carnivorous saltwater fish usually eat a diet of shrimp, plankton and other small crustaceans.

Visit our Saltwater Fish Shop for all the supplies you need for your saltwater fish pet. And check out our Saltwater Fish Guide to learn all you need to know about getting started as a proud saltwater fish parent.

The best food for saltwater fish will greatly depend on what species you have. The best saltwater fish food for your pets will be one that is specifically formulated or suited to the fish species in your aquarium. It should mimic the food that your fish would normally eat out in the wild and will greatly impact the wellbeing and vibrancy of your pet. Saltwater fish often benefit from having a varied diet, so including a good variety of nutrition sources is best. These might include live food, frozen food, freeze-dried sources, seaweed, flakes, granules, pellets and others. A well-balanced marine fish diet will usually consist of a combination of commercial algae sheets, flakes, pellets, frozen or freeze-dried food and frozen Mysis and brine shrimp.

It’s best to choose frozen saltwater fish food according to what your marine fish pet would consume in their natural habitat. Frozen food can be an excellent staple or supplementary diet for herbivore, carnivore and omnivore saltwater fish.

If you’re wondering how much to feed saltwater fish, the answer will usually depend on the unique mix of species you’re keeping in your marine aquarium. It’s often ideal to provide your fish with small amounts of food several times throughout the day—this is similar to how they might eat in the wild. It’s not good to feed your fish a lot at once, and they typically require food every day.

*Based on petco.com sales data.