Seachem Reef Phytoplankton Marine Nutritional Supplement
A specially formulated mix of green and brown marine phytoplankton designed to provide essential nutrients for tropical marine aquarium invertebrates.
Rich in vital fatty acids, proteins, vitamins, amino acids, and natural carotenoids, this supplement supports the health and coloration of filter feeders and other invertebrates.
Particle sizes range from 1 to 20 µm, making it suitable for a wide variety of marine invertebrates and filter feeders.
| Key Nutrients | Benefits |
|---|---|
| Fatty acids, proteins, amino acids | Supports growth and development in invertebrates |
| Vitamins and B-complex | Enhances metabolic function and energy utilization |
| Natural carotenoids | Provides bioavailable pigmentation and antioxidant protection |
FAQ
What types of invertebrates can benefit from Reef Phytoplankton?
Reef Phytoplankton is suitable for a wide range of tropical marine invertebrates, including corals, clams, snails, shrimp, and other filter feeders that rely on microscopic food sources.
How should Reef Phytoplankton be added to the aquarium?
Add 1-2 drops per 10 gallons of water weekly, or as recommended by your aquarium’s specific invertebrate needs. Mix gently into the water column for even distribution.
Is Reef Phytoplankton safe for use with live rock and coral systems?
Yes, Reef Phytoplankton is safe for use in reef aquariums with live rock and coral systems. It is specifically formulated for marine environments and does not contain harmful additives.

Phil Hart –
My anemones and snails have shown better color and activity since I started using Reef Phytoplankton. The product is easy to add and visible improvement in their health within a few weeks.
Ava Graham –
Great supplement for my coral tank. The coloration of my soft corals has improved noticeably. I use it once a week and it’s a consistent addition to my feeding routine.
Neil Black –
My hermit crabs and small invertebrates are more active and vibrant. The natural carotenoids seem to give them better pigmentation and overall health.
Rose McLean –
Works well in a mixed reef setup. I noticed a difference in the feeding behavior of my clams after a few weeks. No issues with water parameters or compatibility.