16oz Concentrated Guillard's F/2 Formula for Marine Phytoplankton Cultivation, Aquaculture, Reef Tanks, 16 ounces

Great value! Only need 1 ml per liter! Can make 1000 liters of growth solution per bottle when mixed with filtered water. Odorless. High quality/easy to use. It is used to grow quality, healthy, vibrant strains of almost any type of algae or phytoplankton for science projects or climate research. Very useful!Personally, I am usually a critic before a proponent of the products I buy. But this fertilizer lived up to the claims. I use it to grow a few different species of algae, which I then use to add nitrogen to my compost bin. I also have a reef tank with wild grown live rock (which has to my knowledge, hundreds of different organisms that live attached or inside the rock). To keep them healthy, they need a steady supply of phytoplankton and certain algae. The live rock is over 2 years old and all the filter feeders, fans, and barnacles are still going strong!

Perfect quality and the functionality of how to use it and how it works is very simple and ease of use for anyone

I culture nannochloropsis in a small container for my aquarium filter feeding inverts and corals. This is a great product for culturing phytoplankton. It is rich in nitrates, phosphates and iron in the proportions that the algae needs to grow.Just be very careful not to overdose this product. A little but goes a long way.

What's more to say? They followed a known good working formula, presumably under lab conditions. If you follow the instructions, add this to RO/DI water, and then add live Chlorella vulgaris starter to it, within a few days you'll have gallons (or more) of dense Chlorella culture.My wife uses this same stuff to culture 4 different species of marine phytoplankton with similar results.

The media could not be loaded. I’m trying to grow phytoplankton for my reef. I have picture day 1 and day 4. This is my first time and I am so glad this fertilizer worked!I do wish there were some instructions on how to set up a phyto culture, but it has been pretty straight forward from YouTube videos.

Using this to grow phytoplankton and its working good so far. No complain

A must-have for marine algae culturing. This is a concentrated Guillard's F/2 algal fertilizer at a competitive price. It works very well for culturing nannochloropsis oculata and tetraselmis sp. A little goes a long way when used as directed.

This didn't work for me personally which is why I am going with 3 stars. This could have been due to my own mistakes so I plan to restart and give it another go with culturing phytoplankton with this. I will update my review once I have.