OceanMagik Live Phytoplankton 4 Species Blend

Rated 5.00 out of 5 based on 10 customer ratings

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OceanMagik is a nutritious mixture of four Live Phytoplankton strains (Nano, Iso, Tet, and Thal) that is great for feeding copepods, corals, clams, and other filter-feeding inverts. OceanMagik is a hand-selected blend of the most nutritious Live Phytoplankton strains available. This is the same blend we use to feed and culture our Poseidon's Feast Live Copepods in our Facility. As a Live product , OceanMagik Phytoplankton will actively seek out and consume Nitrates and Phosphates in your aquarium before they can contribute to nuisance algae growth. This means you get less algae, crystal clear water, more copepods and vibrant coral! Continued use of OceanMagik will also stabilize pH.

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OceanMagik Live Phytoplankton Blend:

OceanMagik is a unique blend of Four Live Phytoplankton species, specifically selected to provide your corals, Pods, and filter feeders a complete diet of highly nutritious essential fatty acids, proteins, vitamins, amino acids and carotenoids. OceanMagik will continuously feed your corals, clams, copepods, and other filter-feeding invertebrates. It is also designed to improve water quality by out competing nuisance algae for Nitrate and Phosphate. As the Live Phytoplankton in OceanMagik reproduces, it consumes nitrate and phosphate in the aquarium. This rapid growth leaves less of these chemicals available for use by unwanted algae; restricting unwanted algae growth. Only a LIVE product can offer both of these benefits as “dead” products do not reproduce and immediately begin decomposing into Nitrate and Phosphate. OceanMagik is a natural way to balance your tank and it will not cloud your water. Prolonged use of OceanMagik will also stabilize pH.

How to use it:

We recommend starting with a dose of 5ml per 20 gallons of tank water every day for the first 2 weeks. As your pod population increases and your corals become accustomed to feeding on live phytoplankton this dosage can be gradually increased over time until an ideal feeding regimen for your tank is established.

What’s In It?

OceanMagik is a unique blend of the four Live Phytoplankton species described below:


Nannochloropsis gaditana :: Non-flagellated Yellow/Green :: 1 – 5 microns

This tiny green algae consumes several nitrogen waste compounds including ammonia, nitrites, and nitrates. This helps if you have an overfeeding problem, if you are adding a new critter to your tank, or if you want to reduce the frequency of water changes.



Tetraselmis sp :: Green Biflagellate :: 6 – 10 microns

With a rich and varied amino/ fatty acid profile, Tetraselmis provides a very nutritional feed for your marine life and zooplankton. Due to its highly nutritional makeup, Tet is commonly used in large aquaculture facilities.



Isochrysis galbana :: Brown Biflagellate :: 10 – 14 microns

This complex brown algae is high in DHA and often used to enrich zooplankton such as copepods and brine. Dosing your tank with Isochrysis will boost zooplankton and copepod levels. It will also help with the development, coloration, and resilience of your marine life. Isochrysis is the most commonly used algae for oysters, clams, mussels, and scallops



Thalassiosira weissflogii :: Unflagellated Diatom :: 5 – 32 microns

Thal is the largest strain of phytoplankton we offer. As a beneficial diatom, this algae consumes silicates, restricting the growth of harmful dinoflagellates and silicates. It has also been shown to reduce cycle time in a new tank.

Additional information

Weight N/A
Dimensions N/A

8oz, 16oz, 32oz, 64oz, 1gal

Usage Directions

Add 5ml per 10gal 3-4 times per week for the first week. Increase by 2ml each week for three weeks, then adjust as needed.

  • Spot-feed corals and inverts to maximize growth
  • Use with Poseidon’s Feast live copepods to establish or maintain “Clean Up Crew”
  • Gradually increase OceanMagik dose to accelerate coral growth and increase copepod populations.


  • Refrigerate. Do not freeze.
  • Shake bottle periodically to prolong useful life.

11 reviews for OceanMagik Live Phytoplankton 4 Species Blend

  1. Rated 5 out of 5

    Great product and customer service!

  2. I was in the habit of ordering the same phyto, but this blend has become my new favorite. I am always looking for things to feed my baby Reidi seahorses and the first week is crucial. This excellent product inadvertently feeds them by feeding copepods, and other creatures in their tank. I rate their success by how large their stomachs are which may not be scientifically sound. I am delighted with the results. My observation of twin tanks located side-by-side showed that this OceanMagik blend won.

  3. Rated 5 out of 5

    My copepods are thriving

  4. Rated 5 out of 5

    Arrived on time and as promised.

  5. Rated 5 out of 5

    This is a really easy to use product that doesn’t cloud the water and my corals begin eating immediately. I will be getting more of this

  6. Rated 5 out of 5

    (verified owner)

    My tank has never been so clear, I don’t have tons of hair algae for the first time, and my fish and corals, and all the other critters are doing great.

    All my fish go crazy when I put this in the water, especially my dragonetes and my mandarin. I use the pods also, especially because I have 2 dragonets and 1 mandarin, but everyone loves them, I have to put them in at night or my tank would become like a shark fest!

  7. Rated 5 out of 5

    My corals have BLOOMED!!!!! I had a flowerpot that had receded on its skeleton. After a month of adding Ocean magik it had filled out back into its skeleton and has never looked better. Great product

  8. Rated 5 out of 5

    I was cycling my tank when I added two bags of copepods and Ocean Magik. I tested the water chemistry before adding anything and my readings were high because of the cycle. Algae Barn claims that the phyto will consume Ammonia, Nitrite, Nitrate, and Phosphates. I can confirm that statement that Ocean Majik does do what Algae Barn says. Before adding the Ocean Majik, my ammonia was 0, nitrite 5 ppm, nitrate 50 ppm, and phosphate .6 ppm. After adding one feeding, the nitrites went to 1 ppm, nitrates went to 25 ppm, and phosphates went to .2 ppm. The second time I added Ocean Majik, my nitrites are at 0 ppm, ammonia at 0 ppm, nitrate at 2.5 ppm, and phosphates are at .19 ppm. The last readings were also after a 33% water change but I help confirm that the product does what it says it does.

  9. Rated 5 out of 5

    (verified owner)

    my sps have responded, as well as my pods to this addition. I only add half the amount per directions.

  10. Rated 5 out of 5

    (verified owner)

    The cleanest phytoplankton I have bought and my pods are 10 days old and are getting huge by dosing them in a 1 gallon container

  11. Rated 5 out of 5

    (verified owner)

    My favorite Phytoplankton. My tank LOVES it. Would highly recommend to anyone.

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