Best Fish Food for Immune Support of 2026

HERONS Tropical Flakes offer a nutritious blend designed for a variety of tropical fish, including guppies, bettas, and cichlids. This multi-nutrient formula is packed with high protein and essential vitamins, ensuring your fish receive balanced nutrition. You can use these flakes for everyday feeding, making it easy to maintain your fish's health. The unique composition of seven flake types enhances growth, colouration, and immune support, while also promoting digestion. With no cloudy water, these flakes help keep your aquarium clean and clear.

HERONS Pond Flakes provide a nutrient-rich diet for your koi, carp, and other pond fish. This complete feed is packed with essential vitamins, minerals, and trace elements to promote healthy growth and strengthen your fish's immune system. Additionally, you won't have to worry about cloudy water, as these flakes are designed not to cloud your pond. Their diversified formula makes them ideal for everyday feeding throughout the year, ensuring your fish receive the nutrition they need to thrive.

King British Catfish Pellets provide a complete food solution for catfish and other bottom-feeding tropical fish. With high quality, natural ingredients, these pellets ensure your fish receive essential vitamins, minerals, and trace elements for optimal health. The low waste formula helps maintain clearer tank water, making it easier for you to care for your aquarium. Additionally, this food supports a healthy immune system, promoting vibrant colouration in your fish, which adds to the beauty of your tank.

NT Labs Pro-f Probiotic Marine Food is an excellent choice for marine fish enthusiasts. It contains probiotic bacteria that boost your fish's immunity and reduce waste, ensuring a healthier aquatic environment. The highly nutritious blend of krill and squid meal makes it easy for your fish to digest and absorb essential nutrients, leading to improved water quality. Additionally, this food enhances the vibrant colours of your fish, keeping them healthy and lively. You can conveniently feed this granulated food twice daily, as it includes both floating and sinking granules to accommodate different feeding preferences.

HERONS Algae Wafers are a complete vegetable food designed for bottom-feeding fish and crustaceans. With a minimum of 6% Spirulina platensis, these wafers deliver essential vitamins and minerals for healthy growth. They are perfect for loaches, cories, and catfish, ensuring that your aquatic pets receive the nourishment they need. Additionally, the high fibre content aids digestion, promoting overall well-being and vibrant colouration in your fish.

HERONS Algae Wafers are a complete vegetable food designed for bottom-feeding fish and crustaceans. With a minimum of 6% Spirulina platensis, these wafers provide essential vitamins and minerals for your aquatic pets. They are perfect for herbivorous and omnivorous fish, ensuring they receive a nutritious diet. These sinking wafers also help maintain a healthy immune system and enhance colouration, promoting the overall well-being of your fish. The high fibre content ensures excellent digestibility, making feeding convenient and beneficial.

The FishScience Fish Treats offer a high marine protein content of 47%, providing essential amino acids from fish, shrimp, and krill to support strong muscles, steady growth, and lively fish. The treats stick to the aquarium glass, letting you observe your fish’s natural feeding behaviour up close, which is convenient for tropical fish, goldfish, and marine species alike. They include algae and vegetables that aid digestion and brighten your fish’s colours, helping maintain vitality. Additionally, garlic and yeast improve flavour and boost your fish’s immune system, reducing stress and enhancing gut health for a happier aquarium.

NT Labs Pro-f Algae Flake is a nutritious fish food designed for herbivorous marine fish. It features a blend of phytoplankton, including spirulina and chlorella, along with essential seaweed species to provide optimal nutrition. The inclusion of garlic not only aids fish recovering from parasites but also stimulates feeding in picky eaters. Additionally, this product is easy to use, with specific feeding instructions for both surface and mid-water feeders, ensuring your fish receive the right amount of food efficiently.

HERONS Mini Wafer Mix is designed for all bottom-feeding fish, making it ideal for species like plecos and catfish. These premium sinking wafers are enriched with Spirulina, spinach, seaweed, and gammarus, ensuring a rich diet for your fish. The diverse formula promotes vibrant colours and supports overall health, enhancing your fish's immune system. With high fibre content, it ensures excellent digestibility, so you can feel confident that your fish are receiving the nutrition they need for a healthy life.

The King British Catfish Pellets provide a complete diet for catfish and other bottom-feeding tropical fish. Made from high-quality, natural ingredients, these pellets ensure your fish receive essential vitamins, minerals, and trace elements for optimal health. The low waste formula is particularly beneficial for maintaining clearer tank water, allowing you to enjoy a pristine aquarium environment. Additionally, by promoting a healthy immune system, these pellets help in enhancing the overall well-being and vibrancy of your fish.