Seachem Reef Phytoplankton
Quick Overview
- Concentrated blend of green and brown marine phytoplankton
- Size ranges from 1-20 μm
- Enhanced to increase the bioavailability of important nutrients
Reef Phytoplankton™ is a concentrated blend of green and brown marine phytoplankton designed to provide essential fatty acids, proteins, vitamins, amino acids, and biological carotenoids for invertebrate diets. The particle size ranges from 1 to 20 μm, making it suitable for a wide range of tropical marine aquarium filter feeders and invertebrates.
Reef Phytoplankton™ contains a natural source of carotenoids, which supports essential protein needs and offers a more bioavailable form of pigmentation compared to synthetic alternatives.
| Key Features | Details |
|---|---|
| Phytoplankton Type | Green and brown marine phytoplankton |
| Particle Size | 1–20 μm |
| Nutrient Content | Essential fatty acids, proteins, vitamins, amino acids, biological carotenoids |
FAQ
What are the benefits of using Reef Phytoplankton in a marine aquarium?
Reef Phytoplankton provides essential nutrients like fatty acids, proteins, vitamins, and amino acids that support invertebrate health. Its natural carotenoids enhance pigmentation and improve nutrient bioavailability for filter feeders and reef invertebrates.
Is Reef Phytoplankton suitable for all types of marine invertebrates?
Yes, due to its particle size range of 1–20 μm, it is suitable for a broad range of tropical marine aquarium invertebrates and filter feeders.
How should Reef Phytoplankton be stored and handled?
Store in a cool, dry place away from direct sunlight. Keep the container tightly sealed to maintain freshness and potency. Use as directed in the product guidelines.

Benjamin Bower –
I’ve been using Reef Phytoplankton for several months now and noticed a significant improvement in the color and activity of my shrimp and snails. The particles are fine and easily consumed. My corals have also shown better feeding behavior.
Boris Graham –
It’s a bit harder to find since it’s a special order, but once received, it works well. My hermit crabs and small invertebrates are more active and vibrant. The natural pigmentation is noticeable in the tank.
Joanne Marshall –
This product has become a staple in my reef setup. The nutrient content supports both invertebrates and the overall health of the ecosystem. I appreciate the natural carotenoids that give a more natural color to the animals.