Description
50/50 Tetraselmis & Nannochloropsis
A Balanced Live Phytoplankton Blend for Reef Aquariums
Freshly cultured and packed to order for maximum cell density, vitality, and nutritional value.
On natural reefs, corals and filter feeders are never exposed to a single species of phytoplankton.
Instead, they consume a constantly changing mixture of microalgae, each contributing different
fatty acids, proteins, pigments, and micronutrients.
A 50/50 mix of Tetraselmis and Nannochloropsis recreates this natural diversity,
providing a far more complete and biologically appropriate food source than either culture used alone.
Why a Mixed Phytoplankton Culture Makes More Sense
Different marine organisms require different particle sizes, nutrient profiles, and fatty acids.
By combining two complementary species, this blend avoids nutritional gaps and supports a wider
range of reef life.
- Broader fatty-acid spectrum
- Mixed particle sizes for different feeding strategies
- Richer micronutrient and pigment profile
- More natural, reef-like plankton diversity
Together, these characteristics more closely mirror the “plankton soup” found in the ocean.
Complementary Strengths of Two Proven Species
Nannochloropsis – The Omega-3 Powerhouse
- Exceptionally rich in EPA (eicosapentaenoic acid)
- Excellent fuel for copepod and rotifer reproduction
- Supports coral energy reserves and tissue repair
- Small cell size ideal for SPS polyps and micro-filter feeders
Tetraselmis – The Nutrient-Dense All-Rounder
- Larger, motile cells packed with proteins, vitamins, pigments, and antioxidants
- Broader range of amino acids and natural carotenoids
- Strong feeding response in LPS, soft corals, and filter invertebrates
- Particularly valuable for clams, feather dusters, gorgonians, and sponge communities
Real Benefits Inside the Aquarium
- Faster and more stable copepod populations (ideal for mandarins, wrasses, and dragonets)
- Improved polyp extension, colour, and growth in SPS, LPS, and soft corals
- Effective feeding for non-photosynthetic corals and filter feeders
- Supports a healthy microfauna food web, not just “green water”
- Encourages biological nutrient uptake, helping balance nutrients naturally
Because different organisms prefer different prey sizes and compositions,
every dose delivers something useful to every level of the reef ecosystem.
Why Not Just Use One Species?
A pure Nannochloropsis culture excels in EPA but is relatively limited
in vitamins and pigments. A pure Tetraselmis culture is nutritionally
rich but lacks the ultra-high EPA levels many marine organisms depend on.
By combining both species, you avoid nutritional blind spots and reduce the risk
of long-term deficiencies, especially in systems where phytoplankton is a primary
plankton food source.
Cultured for Quality — Not Shelf Life
- Grown in clean, controlled conditions
- Packed fresh to order — not diluted or stored for months
- High cell density with active, living algae
- Suitable for daily dosing, pod cultures, and filter-feeder systems
Ideal For
- SPS-dominated or mixed reef aquariums
- Copepod and rotifer cultures
- Clams, gorgonians, feather dusters, and sponges
- Nutrient-controlled systems using live phyto as a natural export method
A Truly Balanced Plankton Diet
50/50 Tetraselmis & Nannochloropsis is not just “two greens in a bottle”.
It is a balanced live plankton diet designed around how marine life actually feeds
— and how reef aquariums function at their best.



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