OceanMagik Live Phytoplankton 4 Species Blend

Rated 5.00 out of 5 based on 18 customer ratings

Review This Product Now & Earn 20 PodPoints


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.

Earn up to 90 PodPoints Points.

Our Guarantee

We take the worry out of buying Live Copepods, Phytoplankton, Inverts, and Captive Bred Fish online by going above and beyond to take care of our customers. That’s why we guarantee every order we ship will be 100% Alive On Arrival or we will replace it free of charge. Booya. We’ll even cover the shipping on the replacement no matter which service you choose. Double Booya.

About our policy: When your order arrives, be sure and inspect the contents to ensure everything is looking alive and well before you add them to your tank or put them in the fridge. We’ll give you 12 hours after delivery to make sure you are completely satisfied.

“We will take care of you and make it right”

If for any reason you decide something isn’t quite ultra grade, simply snap a photo of the unopened item(s) you would like replaced. Be sure to get the expiration date on the back label in the photo. After that, visit www.algaebarn.com/claims and submit the form. We’ll review the photo and have a replacement out to you faster than a six-line wrasse at feeding time.

Captive Bred Fish: We guarantee every Live Fish we ship to be 100% Alive On Arrival and we also offer a 7-day health guarantee on all Live Captive Bred Fish. In the event that your fish arrives DOA (Dead On Arrival), simply take a photo of the fish in the unopened bag/jar within 2 hours after delivery and visit www.algaebarn.com/claims to submit the form. If the fish is DOA, we will offer you a choice of either a full refund or a free replacement, including the shipping cost. If the fish expires from natural causes (this does not include being killed by tank mates, jumping out of the aquarium, being acclimated to the wrong environment, not being fed the recommended foods) within 7 days after delivery, just provide a picture of the expired fish and we will offer you a free replacement, however, you must pay for shipping, or a refund, less the shipping cost. We can offer this industry leading guarantee on all of our live fish because Captive Bred fish are generally healthier and hardier than their wild-caught counterparts!

Invertebrates: We guarantee every invertebrate (Invert) we ship to be 100% Alive On Arrival. In the event that your inverts arrive DOA, simply take photos of the DOA items within 2 hours of delivery and visit www.algaebarn.com/claims to submit the form. We will review the photos and issue store credit for any DOA Inverts!

Once your replacement order is processed, we’ll send you a brand new tracking number automatically. Thats it, pretty simple right?

So start giving your tank the love it deserves and order with confidence knowing that AlgaeBarn has your back.

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. We designed OceanMagik to improve water quality by outcompeting 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 – as a result, OceanMagik restricts unwanted 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.

What’s In It?

OceanMagik consists of a proprietary blend of four Live Phytoplankton species:


Nannochloropsis gaditana :: Non-flagellated Yellow/Green :: 1 – 5 microns
This tiny green algae consumes several nitrogen waste compounds including ammonia, nitrites, and nitrates. As a result, Nano 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. Large aquaculture facilities commonly use Tet, due to its highly nutritional makeup.


Isochrysis galbana :: Brown Biflagellate :: 10 – 14 microns
This complex brown algae is high in DHA and is also often used to enrich zooplankton such as copepods and brine. Dosing your tank with Isochrysis will also boost zooplankton and copepod levels. It will also help with the development, coloration, and resilience of your marine life. Oysters, clams, mussels, and scallops all love Isochrysis!


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. Cycle time is reduced by adding Thal to your tank!

Additional information

Weight N/A
Dimensions N/A

8oz, 16oz, 32oz, 48oz, 64oz, 80oz, 96oz, 112oz, 128oz

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.

19 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.

  12. Rated 5 out of 5

    (verified owner)

    Love the packaging….a nice sweet surprise in the bottom. My tank seems more happy and the algae outbreak seems to be improving a little.

  13. Rated 5 out of 5

    (verified owner)

    I bought a combo pack (copepods and phytoplankton) to seed my refugium in my 150 gallon that I set up in January. After the tank finished its cycle I got a huge outbreak of diatoms all over my glass, powerheads, sand and live rock. I ordered more live phytoplankton and after adding the recommended dosage in the return pump chamber of my sump for about a week now, the diatoms are nearly gone from the rocks and powerheads with a noticeable reduction each day without doing any water changes. My nitrate and phosphate levels are still higher than I’d like but I’m continuing use because the phytoplankton should reduce these levels too. I’m going for an all natural filtration method aside from protein skimming so this product has been ideal for me.

  14. Rated 5 out of 5

    (verified owner)

    Great product! My copepod population is huge and fat without a refugium or macro algae in the tank. My coral is showing great extension either from feeding off the phytoplankton or the phyto stuffed copepods

  15. Rated 5 out of 5

    (verified owner)

    Is great with copepods!!!

  16. Rated 5 out of 5

    (verified owner)

    Is great for copepods!!!

  17. Rated 5 out of 5

    (verified owner)

    My tank loves this phyto. Great customer service!

  18. Rated 5 out of 5

    (verified owner)

    Great product! Copepods are thriving and my flame scallop is doing great as well.

  19. Rated 5 out of 5

    Ocean Majik made my water so clear, it was nice surprise. I believe it works as well as my carbon for polishing the water. I add a little each morning and the water is beautiful all day. My pods disappeared pretty quickly though. Sort of a let down I thought 10,000+ would do the job of seeding my 45 gallon tank. Overall, happy with everything else

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