F2 Ingredients?

[ThePurple12]

I might try to culture phytoplankton, and was wondering what f2 fertilizer contains. Can I just use nutrient-rich tap water as fertilizer?

 

[taricha]

Just get Florida aqua farms micro algae grow or fritz f/2 algae food.

F/2 Algae Food

Fritz Aquatics' F/2 Algae Food is a super-concentrated, easy-to-use liquid for eliminating the time required for weighing minerals and trace elements.

fritzaquatics.com

They are both based on Guillards f/2 media which contains dozens of ingredients from major nutrients to trace. You don't want to try to build it from scratch.

 

[ThePurple12]

Thanks for replying. I’m not trying to build it, I’m just wondering if I can just use tap water as fertilizer, as it has 20 ppm nitrates, and it works for regular plants, fresh and salt.

 

[taricha]

Maybe. If it also had phosphates and trace metals in a sufficient but not problematic level.

So much else can go wrong with growing phyto, I'd make sure to do the easy part right.

 

[Doctorgori]

I just saw a exact formula's for the 2 main aquatic fert formulas, one being the Guiliards ...its on the FAO site...it could take a min as I'm looking through my 2million bookmarks

I’m just wondering if I can just use tap water as fertilizer, as it has 20 ppm nitrates, and it works for regular plants, fresh and salt.

sure, maybe but I think one issue I've always had with phyto cultures is contamination: bacterial, algae or even rotifers,et .... Guiliards is cheap and easy to find ...

 

[ThePurple12]

Thanks, I didn’t think of that

 

[Sallstrom]

f/2 Medium Stock Solutions | PDF | Oceanography | Aquatic Ecology

This document provides recipes for f/2 and f/40 culture media for growing marine planktonic diatoms. The f/2 medium recipe contains trace elements, a vitamin mix, sodium nitrate, sodium phosphate, and natural seawater. The trace elements and vitamin mixes are added as stock solutions to the...

www.scribd.com

 

[Subsea]

Thanks for replying. I’m not trying to build it, I’m just wondering if I can just use tap water as fertilizer, as it has 20 ppm nitrates, and it works for regular plants, fresh and salt.

Marine algae’s are much more complex than land plants. All marine algae’s are not controlled by the most abundant element, but they are limited by the least abundant element.

 

[ThePurple12]

Gotcha

 

[KrisReef]

I've got some that i think I will dump.https://www-cyanosite.bio.purdue.edu/media/table/f2.html

f/2 Medium​

https://www-cyanosite.bio.purdue.edu/media/table/f2.html
Cyanosite
https://www-cyanosite.bio.purdue.edu › media › table › f2

f/2 Medium contains extensive silica precipitate and should be used only when growing diatoms. For other algal groups use f/2-Si Medium.