Repashy SuperFoods Super Green (Algae Gel)

Repashy SuperFoods Super Green is a vegan green-algae gel premix, made in the USA by Repashy Ventures, and it sets out to do something most "algae" foods only pretend to. Where a lot of them quietly fold in some fish or krill for palatability, Super Green uses none at all: Spirulina and Chlorella algae sit at the top of the ingredient list, with plant matter making up the rest. It is built for true herbivorous and algae-grazing freshwater fish and invertebrates, the animals whose long digestive tracts are set up for breaking down plant cells rather than processing animal protein.

That design points it squarely at species such as Tropheus and Petrochromis cichlids, Ancistrus and Otocinclus plecos, and algae-grazing shrimp and snails, all of which do better on a plant-first diet. In the wild these are animals that spend their days grazing the film of algae and biofilm on rocks and wood, so a meat-heavy feed can sit badly with them. If you keep them, this is a clean, algae-heavy staple rather than a mixed one. Repashy's Soilent Green covers the same green ground but adds fish, squid and krill for omnivorous grazers, while Community Plus is the balanced choice for general community tanks. Super Green sits at the strict-vegetarian end of that range. For the shrimp and snails many of us keep alongside our other inverts, it makes an easy, plant-led everyday food.

It reaches you as a fine powder that you reconstitute at home. Add hot or boiling water and stir hard until it thickens, then let it set into a firm gel you can cut into cubes, shred for shrimp, or press onto the glass for grazers to work at. You are after something solid enough to hold together in the water rather than cloud it, so use a touch less water for a stiffer set and a touch more if smaller mouths struggle. For an invert keeper it doubles as a vegetable-rich treat that isopods will happily graze over, though it is worth being honest that this is an aquatic algae-grazer food first and not a purpose-made isopod diet. If your isopods are the main event, Morning Wood is the Repashy blend aimed at them. Offer Super Green in small amounts and lift any leftovers before they soften and foul the water.

Store the dry powder sealed and somewhere cool and it keeps for a long time, which is a good part of the appeal next to fresh greens that wilt within days. Make up only what you need for a feed and keep the rest in the tub. You will find it and the wider Repashy line in our accessories collection.