Food
Premium dried nori for marine herbivores
Nereus Seaweed is pure, unseasoned sushi-grade nori (Porphyra / Pyropia) prepared for aquarium use — the same style of sheet used in quality sushi kitchens, without salt, oil or flavour coatings that do not belong in a reef.
Herbivorous marine fish such as tangs (Zebrasoma, Acanthurus), rabbitfish and many angels benefit from daily grazing. A clipped sheet keeps them occupied the way natural rock algae would on a reef, and adds plant protein and fibre that pellet-only diets often under-deliver.
Why this format
- Single-ingredient dried nori — nothing added for human snacking
- Easy to clip, portion and store
- Encourages natural scraping and grazing behaviour
- Complements herbivore pellets, spirulina foods and mature live rock
- Clean, international food-grade presentation suitable for serious aquariums
Nutrition (typical per sheet)
Values below follow common plain sushi-nori labelling (~2.5–3 g per sheet). Exact sheets vary slightly by harvest; use as a practical aquarium reference, not a veterinary prescription.
| Per sheet (≈ 2.5–3 g) | Typical amount |
|---|---|
| Calories | ~5–10 kcal |
| Protein | ~1 g |
| Carbohydrate | ~1 g |
| Dietary fibre | ~0.5–1 g |
| Fat | ~0 g |
| Sodium | ~0–5 mg |
| Potassium | ~60–70 mg |
| Iron | ~0.4 mg |
From a fish perspective: one sheet is a low-calorie, high-fibre plant snack with useful protein density for its weight (~30–40% protein by dry mass in many nori analyses). It supports grazing enrichment more than it replaces a complete prepared diet.
Not a complete diet. Rotate with quality marine herbivore pellets / frozen foods and natural algae on rock.
How to feed
- Use a veggie clip or seaweed clip on glass or rockwork in moderate flow.
- Start with a half sheet for a medium tang, or a smaller scrap for a single fish. Increase only if it is fully eaten.
- Leave it for 1–3 hours of grazing, then remove leftovers so decaying algae does not spike nutrients.
- Offer daily or several times weekly depending on livestock and how much natural algae your rock already grows.
- Never use roasted snack nori with oil, salt, sesame or seasonings.
Best practice
- Pair with the Nereus dashboard mindset: watch nitrate/phosphate if you feed heavily.
- Keep unused sheets sealed and dry.
- Ideal for quarantine and display tanks where you want predictable, clean greens.
Nereus Seaweed is a simple product done properly — premium nori, clear feeding guidance, and the grazing behaviour herbivores were built for.