Water type
Marine + Freshwater
Colour & specimen: This fish's colouration may look different in your own tank depending on your lighting, diet, stress levels and water conditions, and can vary between individual fish of the same species. You will not receive this exact fish pictured; the one you receive will be a similar size, colour and condition.
WA & TAS orders: state biosecurity regulations restrict which live animals can be sent to Western Australia and Tasmania — please check what we can send to you before ordering. See delivery info
Green Seaweed (Green Marine Algae)
A grazing sheet that keeps herbivorous fish feeding all day. Green Seaweed (Green Marine Algae) is a dried seaweed sheet fish can pick at for hours, clipped inside the tank rather than dropped in as a single dose. It's built for herbivorous marine fish — tangs, rabbitfish and angelfish among them — that naturally spend most of the day grazing on algae.
Key features
- Grazing format — a sheet fish pick at over hours, closer to natural feeding behaviour than a single meal.
- Two ingredients — dried kelp and garlic extract, nothing else.
- High crude protein — over 41% crude protein from the seaweed itself.
- Clip-feeder ready — designed to be held inside the tank on a feeding clip.
Specifications
| Form | Dried seaweed sheets |
|---|---|
| Ingredients | Dried kelp, garlic extract |
| Suitable for | Herbivorous marine fish and invertebrates; herbivorous freshwater fish |
Variant specifications
| Pack | Sheet count | Approx. weight |
|---|---|---|
| 12 g | 4 sheets | 12 g |
| 50 Sheets | 50 sheets | 150 g |
Ingredients and guaranteed analysis
Ingredients, as declared by Ocean Nutrition: dried kelp, garlic extract.
| Guaranteed analysis | Value |
|---|---|
| Crude protein | 41.6% min |
| Crude fat | 2.4% min |
| Crude fibre | 5.7% max |
| Moisture | 4.5% max |
| Ash | 11.1% max |
| Phosphorus | 0.5% min |
Feeding rate and frequency
Tear off a sheet or a piece of one, fix it in a feeding clip against the glass, and let fish graze. Remove what's left after a few hours so it doesn't break down and cloud the water.
Suitable for, and not suitable for
Suits tangs, rabbitfish, large and pygmy angelfish, wrasses, damsels, butterflyfish and other herbivorous or omnivorous grazers, plus herbivorous freshwater fish. Not needed for strict carnivores that won't touch plant matter.
Goes well with
A feeding clip with a suction cup, if you don't already have one, makes this far easier to use than dropping loose sheets into the water.
Common questions
How long can I leave a sheet in the tank?
A few hours is enough for most fish to graze it down. Remove what's left before it starts to break apart, so it doesn't affect water quality.
Does the 50-sheet pack use the same seaweed as the 12g pack?
Yes — both are the same dried kelp and garlic extract sheets, just in different pack sizes (4 sheets at 12 g versus 50 sheets at roughly 150 g).
Can freshwater fish eat this?
Yes, herbivorous freshwater fish can graze on it as well as marine species.
Do I need to soak the sheet before feeding it?
No — clip it in as is. It softens naturally once fish start grazing on it.




