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Old 02/20/2007, 02:55 PM   #1
Chumpo
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Phyto fertilizer & Guillard F/2 formula

Hi
Does anyone know the Guillard F/2 formula for making Phyto fertilizer??

Can this be bought as a ready mix (or ready mixed) formula??

Any info on the formula, or places to buy appreciated.

Thanks


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Old 02/20/2007, 04:42 PM   #2
graveyardworm
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You can buy F/2 here, Florida Aqua Farms


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Old 02/20/2007, 08:14 PM   #3
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I am currently using some f/2 for my phytoplankton cultures. I know people that are using Scott's Miracle-Gro as suggested at Melev's Reef
http://www.melevsreef.com/phytoplankton.html They tell me it makes their phyto grow vey fast and dark in color. This is hardly reason to believe that it is totally safe.
I know some do not use it because it supposedly contains copper. Does anyone know if the copper is in high enough concentrations to be harmful? Artificial seawater mixes contain trace amounts of copper for that matter. I would also be concerned about the amounts of phosphate it may contain. I don't have any Miracle-Gro to check the ingredients, and not feeling up to making a trip to the garden center right now. Does anyone have any insight on this?


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Old 02/20/2007, 11:43 PM   #4
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Melev switched to Miracle Gro because his Nanochloropsus culture kept failing with FAF-branded f/2. Many other people have no problems with FAF-branded f/2.

Graveyardworm found this CCMP website with the ingrediants for f/2. Unless you are planning to use a metric butt-ton of f/2, you will probably find the small bottles from FAF the best bet, IMO.

Miracle Gro:
• 5.8% Ammoniacal Nitrogen
• 9.2% Urea Nitrogen
• 30% Available Phosphate
• 15% Soluble Potash
• 0.02% Boron
• 0.07% Copper
• 0.15% Iron
• 0.05% Manganese
• 0.005% Molybdenum
• 0.06% Zinc

Both contain copper. So does every living thing and seawater and synthetic seawater, often in higher concentrations than what is found in f/2, so I don't have any clue what they are fussing about. Now top-of-the-food-chain fish like tuna they might want to avoid if they have concerns about copper content.


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Old 02/21/2007, 04:15 PM   #5
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Thanks Piercho, I looked for the thread that link was in but for the life of me couldnt find it.


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Old 02/21/2007, 04:57 PM   #6
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Great info, thanks. I couldn't find much on the web about it.


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Old 03/02/2007, 09:05 AM   #7
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Part of the reasons most fertilizers have copper is to kill the fungus. I don't know, I'd feel a little odd using miracle gro in my phyto cultures too, but I feel better about it when I think of the incredible amount of toxins in the ocean. Most of us forget that nutrient poor and pristine are hardly the same thing.... marine life can be more forgiving than we think. I mean, look at all the flame retardent levels in our Oregon salmon and steelhead? Who needs to worry about spontaneous ignition after eating that?!!


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Old 03/02/2007, 09:15 AM   #8
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Hmmm... thinking this over more, a good test would be rotifers. If the phyto kills the rotifers after being fed miracle gro, you know there is too much copper. If it doesn't, it's golden.


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Old 12/13/2012, 11:21 AM   #9
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I grow my rotifers with phyto grown from Miracle Gro. I also does my tank with the extra rotifers and haven't seen any negative consequences yet.

But I am wondering if I want to sell my produce, if I should switch to f/2.


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Old 12/13/2012, 06:15 PM   #10
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At best Miracle Gro will make a nutritionally poor phtyo, and therefore nutritionally poor rots. It's also not any cheaper than f/2. So IMO, yes, switch the proper Guillards f/2 and grow some quality stuff.


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Old 05/06/2013, 12:55 AM   #11
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Quote:
Originally Posted by billsreef View Post
At best Miracle Gro will make a nutritionally poor phtyo, and therefore nutritionally poor rots. It's also not any cheaper than f/2. So IMO, yes, switch the proper Guillards f/2 and grow some quality stuff.
I would say to this I absolutely agree. I have grown phyto via the mg+ee way for many years in our labs, and now have switched to f2 for my cultures.... if you have nutrient poor phyto, you have nutrient poor rotifers, which in turn, is nutrient poor for the prey species... in my case its fry, and those fry always seem to die off with phyto with miracle grow....formula, not because it doesn't grow the algae but because it is so nutritionally deficient!

Hope that helps the great debate!


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Old 06/06/2013, 12:26 PM   #12
dlplunkett44
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F/2 is actually cheaper than MG, especially if you buy the mass packs. No reason not to use it.


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Old 06/22/2013, 07:40 PM   #13
bigbear4x43
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f/2 Guillard's

do you need to refidge the f2 and how nuch do you use for 2 litter
Quote:
Originally Posted by Chumpo View Post
Hi
Does anyone know the Guillard F/2 formula for making Phyto fertilizer??

Can this be bought as a ready mix (or ready mixed) formula??

Any info on the formula, or places to buy appreciated.

Thanks



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Old 06/23/2013, 06:00 AM   #14
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Quote:
Originally Posted by bigbear4x43 View Post
do you need to refidge the f2 and how nuch do you use for 2 litter
It will have a longer shelf life if kept in the fridge. As for how much to dose, it depends on the concentration of your stock solution. I use the Mass Packs from Florida Aqua Farms mixed to their directions, which gives a stock solution for which you use 1ml/2L.


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Old 12/27/2016, 10:47 PM   #15
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F2 fertilizer

Sent from my LGMS550 using Tapatalk


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Old 01/22/2018, 04:25 AM   #16
Barry109
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Hi dose this helps

Quote:
Originally Posted by Chumpo View Post
Hi
Does anyone know the Guillard F/2 formula for making Phyto fertilizer??

Can this be bought as a ready mix (or ready mixed) formula??

Any info on the formula, or places to buy appreciated.

Thanks



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Old 01/22/2018, 04:37 AM   #17
Barry109
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http://mel.xmu.edu.cn/UserFiles/Image/gomap/pdf/f_2_medium.pdf

Quote:
Originally Posted by Chumpo View Post
Hi
Does anyone know the Guillard F/2 formula for making Phyto fertilizer??

Can this be bought as a ready mix (or ready mixed) formula??

Any info on the formula, or places to buy appreciated.

Thanks



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Old 01/22/2018, 04:39 AM   #18
Barry109
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Sorry first time on this site hope this helps


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Old 01/22/2018, 06:04 PM   #19
Subsea
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Barry,
The link did not work for me. Do you have knowledge of phyto and macro algae fertilizer.
I planned on growing ediable Gracilaria Tikvahiae.


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Old 01/26/2018, 07:29 AM   #20
Subsea
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I considered using F2 to grow macro. Just this week, I spoke with Frank Hoff, who wrote the book on phyto culture. Florida Aqua Farms has two products for macro algae.

http://floridaaquafarms.com/shop/pla...lant-fuel-too/


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Old 02/01/2018, 08:59 PM   #21
taricha
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Subsea, That's a cool formula. Everything a macro needs except N and P. You and the fish provide that part.


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