Premium Live Phytoplankton for Your Marine Aquarium

I supply fresh, nutrient-rich live phytoplankton for reef and marine tanks — harvested to order for maximum freshness and cell density.

You can now choose between two premium species:

• Nannochloropsis – £5 per 0.75 L + delivery

• Tetraselmis – £10 per 0.75 L + delivery

Or combine both for the ultimate phyto blend to support your entire reef ecosystem.

Why Add Live Phytoplankton to Your Reef Tank?

Regular phytoplankton dosing brings a host of benefits:

• Feeds filter-feeding invertebrates like corals, sponges, clams, feather dusters, and tunicates.

• Fuels zooplankton populations (copepods, rotifers) which in turn feed fish and corals.

• Enhances coral colouration and polyp extension with natural micro-nutrition.

• Helps stabilise water chemistry by consuming excess nutrients in a balanced way.

• Boosts biodiversity by supporting a varied and healthy microfauna.

• Outcompetes nuisance algae by occupying the same nutrient niche.

• Reduces the risk of dinoflagellate outbreaks by fostering competing beneficial microbes.

• Acts as a natural water clarifier through filter-feeder and microbial support.

• Perfect for gut-loading rotifers, copepods, and brine shrimp before feeding.

• Mimics wild reef conditions with a continuous supply of natural microalgae.

Our Phytoplankton Strains

Nannochloropsis – The Everyday Workhorse

• Cell size: 2–4 µm, non-motile.

• Nutritional focus: High in EPA (omega-3 fatty acid) and excellent for enriching zooplankton.

• Best for: Bulk daily dosing to feed filter feeders, maintain copepod cultures, and improve overall tank health.

• Advantages: Hardy, long shelf life, stable in culture, cost-effective.

• Price: £5 per 0.75 L + delivery.

Tetraselmis – The Premium Feeder

• Cell size: 9–14 µm, motile (swims using flagella).

• Nutritional focus: Rich in protein, vitamins, and both DHA & EPA — superb for zooplankton enrichment.

• Best for: Stimulating feeding response, enriching live foods, and feeding more demanding filter feeders.

• Advantages: Highly digestible due to thin cell walls; movement attracts predators; premium nutrition profile.

• Why it costs more: Takes longer to grow, more delicate, lower yield per batch, requires greater culture care.

• Price: £10 per 0.75 L + delivery.

Tip: Many reef keepers use a mix — Nannochloropsis for cost-effective daily dosing, plus Tetraselmis for enrichment and peak feeding events.

Freshness Guaranteed

• Cultures are harvested and shipped promptly for maximum quality.

• Store in the fridge (not frozen) and shake before use.

• Use within 2–3 weeks for best results.

Give your reef tank a natural boost with live phytoplankton — your corals, inverts, and microfauna will thrive.