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Culturing Phytoplankton kits

phytoplankton culture system

Phytoplankton is a critical key component in any reef aquarium. It’s at the bottom of the food chain which feeds copepods, corals, clams and other microfauna. If you have not tried phytoplankton in your tank, its time culture your own and see the benefits!

Items you will need to culture phytoplankton


Step 1 – Fill your culturing vessel with saltwater 3/4 way full.
Step 2 – Attach your Air Line to your Air Pump. Then attach your Rigid Airline Tubing to the air line. (If you do not have rigid air line tubing you can use an air stone)
Step 3 – Put the air pump above your culturing vessel to prevent any liquid from siphoning into your air pump.
Step 4 – Put your rigid airline tubing (or air stone) into your culturing vessel with saltwater and plug in your air pump.
Step 5 – Pour phytoplankton culturing vessel. We reccommend 8 ounces per gallon of saltwater.
Step 6 – Add f/2 phytoplankton food into your culturing vessel. We reccommend 3 ml per gallon of saltwater.
Step 7 – Put your light on your phytoplankton culture and keep it on for approximately 10-12 hours a day.
Step 8 – Stir your culture daily with a wooden to prevent the phyto from settling at the bottom and suffocating.
Step 9 – Each day you will notice your culture getting darker and darker. After 5-7 days you can harvest your phytoplankton and begin to use it.
Step 10 – Store any unused Phytoplankton in your refrigerator and gently shake daily to prevent suffocation and to keep it alive longer. Toss out any unused Phytoplankton after 60 days.

Phytoplankton Culture Station
Phytoplankton culturing rack

Here are just some of the many uses of our Phytoplankton kits:

  • Promotes healthy, rapid growth in corals
  • Clownfish Breeding projects
  • Feeding Rotifers, copepods, brine shrimp and other microfauna
  • Used to tint the water green in a fish breeding system
  • Feeds and promotes healthy, rapid growth in Clams
  • Increases population of Copepods in your aquarium, sump or grow out tank

…and so much more

Tetraselmis Phytoplankton
Tetraselmis Phytoplankton

How should you use our phytoplankton kits?

Broadcast Feeding:

We recommend that you start off by dosing 5 ml per 25 gallons of total water volume daily. You can slowly increase the amount you dose but keep an eye on your Nitrate and Phosphate. If you notice your nutrients rising, reduce the amount of phytoplankton you are dosing.

Feeding Clams:

We recommend to use between 3 ml – 5 ml every other day to directly feed your clams. Turn off all flow in your aquarium and slowly let the Phytoplankton enter the clams mouth.

Feeding Corals:

We recommend using a cup and scooping out 16-20 oz of aquarium water and add 10-20 ml of Phytoplankton to the cup. Stir the cup for 5 seconds to ensure the Phytoplankton is being mixed thoroughly. You can then target feed corals by turning off all flow in your aquarium and directly feeding any particular coral with a pipette or a coral feeder

How to store our unused Phytoplankton kits?

Store any unused Phytoplankton from our phytoplankton kits in your refrigerator. Shake the bottle daily to prevent the phytoplankton cells from settling and suffocation at the bottom of the bottle. Looking for our video on How to culture Phytoplankton? Click Here