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growing Chlorella and Spirulina indoors human consumption. Safe Fertilizer?

 
Dylan Kunkel
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Hi I've been researching How to grow chlorella and spirulina for the past 2 months and I have a pretty good understanding of what I need to do this.
The main problem I have is finding a human food safe fertilizer.
Any help would be appreciated has anyone else done this?

The only type of fertilizer I can find is guillard's f/2 and I don't know if it is safe for humans to eat??
I found this fertilizer https://www.fritzpet.com/algae-food/ I need a and b
or this http://www.algaedepot.com/servlet/the-6 ... ate/Detail

Do I need Sodium Metasilicate with the f/2 to grow spirulina and chlorella?
Or will baking soda work?


Here's a list of what I am going to buy as soon as I find the right fertilizer.
from walmart
2-10 gallon tanks 1 for chlorella and 1 for spirulina
60 gallon air pump with 2 outlets
2 aquarium heaters
4 ft florescent shop light
2 4ft florescent grow bulbs t12 size
internet
already bought ph strips 0-14
chlorella pyrenoidosa from www.carolina.com
spirulina from www.wardsci.com

What fertilizer would be food safe?
 
Jami McBride
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What jumped to mind was my 'Food Grade' kelp I used in my animal feed.

But I did a quick search and found this...

SEAWEED 24% Food Grade Fertilizer

A chelated liquid seaweed from ASCOPHYLLUM NODOSUM designed to correct potassium deficiencies and improve over-all plant vigor and growth.

CHEMICAL ANALYSIS

Ascophyllum Nodosum Seaweed Extract . . . . 24.00%
Humic Fulvic Acid............ . . . . . . . . . . . . . . . . 1.00%
TYPICAL PROPERTIES
WEIGHT PER GALLON: .............................................. 9.9 LBS
WEIGHT PER LITER: .................................................. 1.18 KG
SPECIFIC GRAVITY: ................................................... 1.16
VAPOR DENSITY (air=1):............................................. N/A
SOLUBILITY (in water): ...............................................COMPLETE
pH OF CONCENTRATE: .............................................. 9.5-10
APPEARANCE AND ODOR: Viscous black liquid, marine odor


I hope this helps ~

 
Dylan Kunkel
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Brad Davies
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Dylan Kunkel wrote:Hi I've been researching How to grow chlorella and spirulina for the past 2 months and I have a pretty good understanding of what I need to do this.
The main problem I have is finding a human food safe fertilizer.
Any help would be appreciated has anyone else done this?

What fertilizer would be food safe?


What about manure, compost tea, or worm compost tea?

In one of the permaculture videos I have seen recently, I can't remember what one for the life of me but I know geoff lawton was in it, he was talking about rain water harvesting and the need to have algea in the water tanks. The reason given was because when organic materials, bird shit, make there way from the roof into the tank the algea will use it as food. The algea will stick to the walls of the tanks and use the energy from the sun and feed on any organic material that makes it's way into the tank. Maybe something along the same priciples can be used except you are the one introducing the organic material so you determine how often and how much. I know from experience that overfeeding my fish always causes an algea bloom either from the excess food or excess waste. Ideally the fertillizer would be used up by the algea and would leave the water clean. Just a thought.
 
Sheena James
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Location: USA
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I think compost or worm compost fertilizer would be the best fertilizer to use. It's safe, organic, easy to do and affordable at the same time.
 
Pamela Melcher
Posts: 299
Location: Portland, Oregon Maritime, temperate, zone 7-8.
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I have been wanting to grow spirulina and chlorella also.

What technique will you use?

I have heard that chlorella has a very thick cell wall which is indigestible, and the cell wall must be broken. How do you plan to break the cell walls?

ou can fertilize with sea water: www.OceanGrown.com

Please keep us posted. I very much want to do this as well.

Both are so ridiculously expensive.....
 
Pamela Melcher
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Location: Portland, Oregon Maritime, temperate, zone 7-8.
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Clickable link for sea water:

www.OceanGrown.com
 
Tom Vered
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Hey
it is important to use safe fertilizer for spirulina growth.
You can find one for growing and one for feeding after you harvest here- Spirulina supplies
 
gaven horne
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from the science type reports that ive browsed it would seem that the algae can certainly survive in seawater, but it would not be a productive way to cultivate it. in africa someweres they have an aglae growing system that takes all of their humanure and liquid waste and runs it through a shallow channel with a clear cover the concentrated sun rays sterilize it then it and its mixed with the algae to grow in a channel system with a paddle mixer...
 
Brett Andrzejewski
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I've experimented with growing spirulina and chlorella.

You can grow them using many different N, P, K (nitrogen, phosphorus, and potassium) macronutrients and micronutrients. The commercially available supplements will give the best growth rates from your algae. You can use commercially available urea with human grade vitamins (you do the calculations) for example, it will not give you the optimal growth rates.

Careful you do not get an infection in algal culture. If you are planning to grow in a sterile photobioreactor then you can probably ensure safety. If you are not planning to use a sterile growth chamber make sure you clean the container frequency, overload your seed culture, and run the culture nutrient limited. That should minimize your chance of getting a unknown organism in your system.

Good luck
 
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