Reefphyto Premium Soft Algae Pellets: Five-Algae Marine Herbivore Food

Tangs, surgeonfish, and angelfish are some of the most visually striking fish in the reef hobby and some of the most nutritionally demanding. In the wild they graze almost continuously, cropping algae from rock surfaces throughout the day. In a captive tank, that grazing behaviour doesn't disappear. The fish that can't express it often show it: faded colour, restless swimming, weight loss that's slow and easy to miss until it becomes hard to reverse.

The problem isn't usually water quality or tank size. It's that most marine fish foods are built around protein-heavy carnivore formulations that simply don't reflect what a tang or angelfish is built to eat. A food that works for your clownfish is not a food that works for your Naso. Without the right vegetable-dominant diet, even well-kept herbivores quietly decline.

Reefphyto Premium Soft Algae Pellets are a 1mm soft, slow-sinking pellet formulated specifically for captive marine herbivores, incorporating five different types of algae in a balanced nutritional profile designed to support healthy weight, immune function, and natural colour in tangs, surgeonfish, rabbitfish, and angelfish. The low-leaching formula locks in nutrients until the pellet is consumed, reducing waste and keeping water quality stable. The soft texture makes them compatible with automatic feeders, supporting consistent feeding schedules without manual intervention. Feed up to three times daily. The pellets can be moulded and pressed directly onto aquarium glass for a natural grazing presentation. Available in 40g, 80g, and 120g sizes.

When a tang is feeding well on the right diet, you see it within weeks. Colour deepens across the body. The fish stops hovering restlessly and starts working the tank with purpose, picking at surfaces, moving with the steady confidence of an animal that is genuinely well fed. The transformation from a pale, edgy fish to a richly coloured, settled one is one of the most satisfying things to watch in reef keeping.

Reefphyto has been supplying marine nutrition from Wales since 2008. Darren and the team have spent 18+ years understanding what captive marine fish actually need to thrive, and these pellets reflect that experience.

Give your tangs and angelfish the diet their biology is built for, and let the results speak for themselves.

Five-Algae Marine Herbivore Food, Cultured in Wales

The most beautiful fish in many reef tanks are also the most nutritionally misunderstood. Tangs, surgeonfish, rabbitfish, and marine angelfish are obligate herbivores whose digestive systems evolved over millions of years to process a continuous, high-volume diet of marine algae. They are not occasional grazers. In the wild, a tang may spend the majority of its waking hours cropping algae from reef surfaces, moving steadily, grazing almost without pause. A captive tank that cannot support that behaviour, nutritionally or environmentally, will produce a fish that slowly declines, often without obvious cause.

The standard response in the reef hobby has been to offer nori sheets, seaweed clips, or generic marine flakes. These approaches are better than nothing, but they fall short of what a purpose-formulated herbivore diet delivers. Nori sheets foul water quickly if uneaten. Generic marine foods rarely contain the breadth of algae species needed to replicate a natural grazing diet. And without consistent, nutritionally complete feeding, even fish in pristine water conditions can fade, lose weight, and become vulnerable to disease.

Reefphyto Premium Soft Algae Pellets were developed to close that gap.

A Five-Algae Formula Built Around Herbivore Nutrition

These pellets are formulated from the same recipe as Reefphyto's premium herbivore flakes, incorporating five different types of algae to deliver a nutritional breadth that single-species algae products cannot match. The blend provides the natural proteins, carotenoids, and micronutrients that marine herbivores use to maintain healthy weight, immune function, and the vibrant colouration that signals a fish is genuinely thriving rather than merely surviving.

The 1mm pellet size suits a wide range of marine herbivore species, from juvenile tangs to adult angelfish. The soft texture makes them palatable and easy to consume, and the formulation is designed to deliver nutrition efficiently rather than shedding into the water column before the fish can feed.

Low-Leaching Formula for Cleaner Water

One of the persistent challenges with marine fish foods is nutrient leaching. Pellets or flakes that break down quickly in saltwater release dissolved organic compounds into the tank before they can be consumed, driving algae growth, raising nutrient levels, and increasing the maintenance burden on the keeper.

The low-leaching formula in Reefphyto Premium Soft Algae Pellets locks nutrients inside the pellet until it is consumed, minimising the amount of material entering the water column as waste. For tanks running low-nutrient systems or housing sensitive SPS corals alongside herbivores, this makes a practical difference to water quality over time.

Automatic Feeder Compatible

The soft pellet construction and consistent 1mm sizing make these pellets well suited for use in automatic feeders. For reef keepers who travel, work long hours, or simply want to support the frequent small meals that herbivores benefit from without manual feeding three times a day, automatic feeder compatibility removes a significant practical barrier to feeding the right diet correctly.

Multiple small meals across the day better reflect the natural grazing pattern of tangs and angelfish than a single large feeding, and an automatic feeder loaded with these pellets can deliver that pattern reliably.

Glass Feeding: A Natural Grazing Presentation

One of the distinctive features of these pellets is their mouldable soft texture. The pellets can be pressed together into a clump and adhered directly to the aquarium glass, creating a feeding station that closely mirrors the way tangs and rabbitfish naturally graze on reef surfaces. This approach also allows the keeper to observe feeding behaviour directly, making it easier to monitor appetite, notice changes in feeding response, and spot early signs of health issues in individual fish.

Which Marine Fish Are These Pellets For?

Reefphyto Premium Soft Algae Pellets are designed for marine herbivores. They are particularly well suited to tangs and surgeonfish of all species, including Zebrasoma, Acanthurus, Naso, and Ctenochaetus genera, as well as rabbitfish, Centropyge and larger marine angelfish, blennies with herbivorous tendencies, and other reef fish whose primary diet in the wild is algae-based.

They are not a replacement for live zooplankton or protein-rich foods in omnivorous species, but for the dedicated herbivores in a reef community they provide a nutritionally complete, convenient, and consistent dietary foundation.

Combining Algae Pellets with Live Marine Nutrition

Algae pellets provide the vegetable-dominant nutritional foundation that marine herbivores need, but the most complete approach to reef fish nutrition includes a live food component alongside dry feeding. Tangs and angelfish in the wild encounter not only algae but also the small invertebrates and zooplankton that inhabit reef surfaces. Supplementing these pellets with periodic live copepod or zooplankton additions gives herbivore-dominant tanks the nutritional complexity that keeps fish in genuinely excellent long-term condition.

Sizes and Feeding Guide

Available in 40g, 80g, and 120g. Feed up to three times daily, offering only as much as the fish will consume within a few minutes to avoid overfeeding. The low-leaching formula reduces waste from uneaten food, but consistent portion management remains good practice for stable water quality.

Frequently Asked Questions

Are these pellets safe for reef tanks with corals and invertebrates?

Yes. The low-leaching formula minimises dissolved organic waste entering the water column, making these pellets compatible with reef systems housing corals, shrimp, and other sensitive invertebrates.

Can I use these in an automatic feeder?

Yes. The consistent 1mm size and dry-handling properties make them suitable for standard drum-type automatic feeders.

How do I stick them to the glass?

Take a small pinch of pellets and press them together between your fingers to form a soft clump. Press the clump against the aquarium glass and it will adhere, creating a grazing patch that fish will work at naturally.

Are these the same formula as the Reefphyto herbivore flakes?

Yes. The pellet formulation is based on the same five-algae blend as the Reefphyto premium herbivore flake range, delivered in a different format suited to automatic feeders and glass-feeding techniques.

Can I feed these alongside live copepods or zooplankton?

Absolutely, and it is a combination we actively recommend. The algae pellets provide the herbivore-specific nutritional base. Live copepods and zooplankton add the live prey complexity that supports immune function, natural behaviour, and long-term vitality.