Spirulina platensis 1L (LIVE)

Live spirulina is a natural food rich in protein, amino acids, vitamins and natural pigments. In a marine aquarium, it supports the nutrition of corals, filter feeders and microfauna, helping to build a more stable and natural ecosystem.

Regular dosing may improve the condition of aquarium animals, support their coloration and increase the availability of fine food particles in the tank.

Spirulina is an excellent supplement to live phytoplankton and can be used as part of daily biological feeding in a marine aquarium.

Live spirulina in a marine aquarium can be a very valuable addition, especially as a natural food and biological support for the system.

Benefits of using live spirulina in a marine aquarium

1. Natural live food for aquarium inhabitants

Spirulina is readily consumed by many filter-feeding organisms and small plankton-feeding animals. It may support the nutrition of corals, clams, sponges, tube worms, copepods, rotifers and other microorganisms living in the aquarium.

2. Support for microfauna

Regular dosing of live spirulina may increase food availability for small fauna in the aquarium. Better microfauna condition means a more stable and natural ecosystem.

3. Source of protein, vitamins and pigments

Spirulina is rich in protein, amino acids, vitamins, minerals and natural pigments such as phycocyanin and carotenoids. Thanks to this, it may support animal condition, coloration and overall vitality.

4. Food for corals and filter feeders

Small spirulina cells may be captured by some corals and filter-feeding organisms. This is especially important in aquariums where natural and regular feeding is desired.

5. Possible support in reducing nutrients

As a living photosynthetic organism, spirulina absorbs nitrogen and phosphorus compounds from the water during growth. It will not replace a protein skimmer, water changes or a refugium, but it can be part of biological system support.

6. Improved biological diversity

Adding live microalgae and food-grade cyanobacteria may help build a more diverse food chain in a marine aquarium.

7. More natural feeding than dry powder

Live spirulina is fresh and biologically active. It is not a dead suspension that immediately starts to burden the water. When dosed sensibly, it may be gentler on the system than excessive use of dry powdered foods.

Important note

Spirulina is a cyanobacterium, not a classic marine phytoplankton such as Nannochloropsis, Tetraselmis or Isochrysis. Therefore, in a marine aquarium, it is best treated as a live supplementary food, not as the only source of phytoplankton. The best results are achieved when it is used together with other live plankton cultures.

Recommended starting dosage

At the beginning, a safe dose would be:

5–10 ml of live spirulina per 100 litres of water daily

After 1–2 weeks, if the aquarium responds well, the dose may be increased to:

10–20 ml per 100 litres daily

In a heavily stocked aquarium with many corals, filter feeders and microfauna, the dose may gradually reach approximately:

20–30 ml per 100 litres daily

Safest dosing schedule

First week:
5 ml / 100 l daily

Second week:
10 ml / 100 l daily

Later:
Increase only if NO3 and PO4 do not rise and no unwanted film or cyanobacteria appears.

It is best to dose in the evening or when the lights are dimming, when corals are more actively feeding. You can also turn off the protein skimmer for 30–60 minutes so the spirulina is not immediately removed from the water.

Shelf life when refrigerated: 4 weeks.