Growing Algae...

[Savvypro]

Hi Savvypro

I would be very interested in your offer and have been checking this thread several times a week. Actually I was going to start with ordering the chems for the medium and sort all that out first but now it seems I better get going :-)

My location is Germany.

[Gekko]

I'm very interested but still confused abut the growth medium needed, I don't want to receive the algae before I can care for them correctly. So I'll just type out what I have so far and maybe you can give me some pointers about the rest. It's from the antenna pdf since it was the only one I could find having a starter mix and a add after harvest mix.

1. The easy part: sodium bicarbonate for regulating the pH, just balance the pH between 10.0 and 10,5.

2. Start up mix per 10 liter:

sodium bicarbonate 160gram
potassium nitrate 20gram
potassium sulfate 5gram
magnesium sulfate 1gram
ammonium phosphate 1gram
see salt 10gram
iron sulfate 0.1gram with 10ml green tea if not already pre-chelated.

3. for every gram of spirulina harvested (dry weight) ad 1,5gram of the following mix back to culture:

potassium nitrate 140gram
monoammonium phosphate 5gram
potassium sulfate 3gram
magnesium sulfate 2gram
iron sulfate < 0.1gram

I saw that the sea-90 salt recommended can be bought from Holland but a 20+ kilo bag would be to much for me to order for starters. Could any seasalt for marine aquariums be used instead? If this salt is to replace the trace minerals then would it not have to be added at each harvest, and wouldn't that lead to a build up of too much salt in the culture with time?

Where do you draw the line between micro and macro nutrients, is magnesium sulfate a trace mineral?

Most of all I would like to have the recipe of the algaelab people as it wouldn't make sense to order their product and have it shipped from USA. Anyone know the formula?

My goal is to figure out a solid recipe, then make sure that I can get hold of everything and then I will be very eager to get the algae's. In terms of equipment I got it all at home already.

[Jetijs]

3. for every gram of spirulina harvested (dry weight) ad 1,5gram of the following mix back to culture:

potassium nitrate 140gram
monoammonium phosphate 5gram
potassium sulfate 3gram
magnesium sulfate 2gram
iron sulfate < 0.1gram

Is this accurate? Don't you mean that for every 100 grams?
Oh, sorry, I got it now

[Savvypro]

I'm very interested but still confused abut the growth medium needed, I don't want to receive the algae before I can care for them correctly. So I'll just type out what I have so far and maybe you can give me some pointers about the rest. It's from the antenna pdf since it was the only one I could find having a starter mix and a add after harvest mix.

1. The easy part: sodium bicarbonate for regulating the pH, just balance the pH between 10.0 and 10,5.

The sodium bicarbonate is also the main carbon source, which the algae will need. So keep that in mind.

2. Start up mix per 10 liter:

sodium bicarbonate 160gram
potassium nitrate 20gram
potassium sulfate 5gram
magnesium sulfate 1gram
ammonium phosphate 1gram
see salt 10gram
iron sulfate 0.1gram with 10ml green tea if not already pre-chelated.

3. for every gram of spirulina harvested (dry weight) ad 1,5gram of the following mix back to culture:

potassium nitrate 140gram
monoammonium phosphate 5gram
potassium sulfate 3gram
magnesium sulfate 2gram
iron sulfate < 0.1gram

I saw that the sea-90 salt recommended can be bought from Holland but a 20+ kilo bag would be to much for me to order for starters. Could any seasalt for marine aquariums be used instead? If this salt is to replace the trace minerals then would it not have to be added at each harvest, and wouldn't that lead to a build up of too much salt in the culture with time?

Where do you draw the line between micro and macro nutrients, is magnesium sulfate a trace mineral?

Most of all I would like to have the recipe of the algaelab people as it wouldn't make sense to order their product and have it shipped from USA. Anyone know the formula?

The Antenna medium is the same one used by Algaelab - took some digging to find that out. If you order algae from them, you have to pay extra for shipping outside of the USA. As the price on their website is only for inside North America. Figure on it costing double - as you need a quick delivery in order for the sample to still be viable when it gets to you.

My goal is to figure out a solid recipe, then make sure that I can get hold of everything and then I will be very eager to get the algae's. In terms of equipment I got it all at home already.

I'm planning on using the same formula you quoted for long term growing/harvesting, but to get the algae upto larger volumes and while testing, I've been using the Zarrouk medium, which has worked. To convert over, I'm only missing the Mono Ammonium Phosphate from my stash of chemicals.

What we really need is a chemist and a biologist, to pick their brains - so as to come up with a way to figure out how to create mediums from whatever is available to us.

[Gekko]

You can get Portuguese and French sea salt [look for: Sal Traditionel, Celtic Sea Salt] - which is what I have been using. Mostly the Portuguese sea salt, as there is less dirt, and you don't have to buy large amounts.

At my health market I can get pink mineral-salt from Himalayas for a very good price that I already use in my kitchen, will probably use that then.

That is very interesting, that product is already on my "to find in Germany" list after reading about it in a book called "Primal body, primal mind", will most definitely go for that. This is the same for UK I guess: Ionic Minerals CONCENTRACE® Best in The World 227ml | eBay

The Antenna medium is the same one used by Algaelab - took some digging to find that out. If you order algae from them, you have to pay extra for shipping outside of the USA. As the price on their website is only for inside North America. Figure on it costing double - as you need a quick delivery in order for the sample to still be viable when it gets to you.

Thank you, then I can relax my mind about that for now :-)
I don't think I will make it for this round of shipping, beginning of May would be more realistic since I'm in a crazy project until beginning of April. Maybe we can try to ship a sample with regular air mail? It takes three days to arrive and you never know, the algae might survive that long without light pretty well. Then it would be easier to spread these little ones over Europe in the future.

What we really need is a chemist and a biologist, to pick their brains - so as to come up with a way to figure out how to create mediums from whatever is available to us.

Yes indeed, but getting Jetijs onboard will make a great contribution reagarding growing algae at home, have been reading about his projects here on the forum for years and I could not think of anyone more suited :-)

Let's keep the thread alive, and thumbs up for all great work.

[Savvypro]

At my health market I can get pink mineral-salt from Himalayas for a very good price that I already use in my kitchen, will probably use that then.

The pink Himalayan salt is not the same, there was a study done in Germany by the government, which showed that the salt only contained about 10 minerals. Unlike sea salt which contains a lot more. But even though it's only 10 or so, it's 10 you need and it's 8 or 9 more than refined table salt.

I have also used it instead of sea salt when I have made up batches of medium. The only thing to remember is that 84% of sea salt is NaCL, while for Himalayan salt it's 92%. So you have 16% of other minerals with sea salt, while the other 8% in the Himalayan, is only 10 or so minerals.

That is very interesting, that product is already on my "to find in Germany" list after reading about it in a book called "Primal body, primal mind", will most definitely go for that. This is the same for UK I guess: Ionic Minerals CONCENTRACE® Best in The World 227ml | eBay


Thank you, then I can relax my mind about that for now :-)
I don't think I will make it for this round of shipping, beginning of May would be more realistic since I'm in a crazy project until beginning of April. Maybe we can try to ship a sample with regular air mail? It takes three days to arrive and you never know, the algae might survive that long without light pretty well. Then it would be easier to spread these little ones over Europe in the future.

3 days would work but the important bit is the guaranteed delivery time. Airmail is not guaranteed here. Considering the cost to get a sample from UTEX, which is $75 for the sample and $50 to Europe. It still comes out a lot cheaper to pay for the next business day shipping.

Yes indeed, but getting Jetijs onboard will make a great contribution reagarding growing algae at home, have been reading about his projects here on the forum for years and I could not think of anyone more suited :-)

Let's keep the thread alive, and thumbs up for all great work.

[Jetijs]

Hi all.
I don't think that the shipping time is such a big problem. My chlorella sample came in two weeks only and I thought it was dead, but it revived in a month or so. Some of the algae cells will survive, it will just take longer to revive them. So if the shipping is up to a week long, I don't think that is a big problem.
Jetijs

[Gekko]

The pink Himalayan salt is not the same, there was a study done in Germany by the government, which showed that the salt only contained about 10 minerals. Unlike sea salt which contains a lot more. But even though it's only 10 or so, it's 10 you need and it's 8 or 9 more than refined table salt.

That is very interesting information, I should go for celtic salt in my kitchen as well then. After having another look on the big 227ml bottle Ionic Minerals CONCENTRACE for about 35 euro it took me be surprise to realise that's barely enough 200 days? Probably not so concentrated after all and maybe not a cost effective source of minerals for growing spirulina?

Did you fin any pre-chelated iron sulfate somewhere?

Thanks Jetijs for the shipping time info, sounds like algaes are more resistant then I would expect, let's wait and see what shipping will be suited.

Found some plankton filter that might be useful, or are they too fine for spirulina?
Gewebe Siebgewebe zum sieben von Plankton Artemia Krebse Fischzucht Fischfutter | eBay

[Savvypro]

That is very interesting information, I should go for celtic salt in my kitchen as well then. After having another look on the big 227ml bottle Ionic Minerals CONCENTRACE for about 35 euro it took me be surprise to realise that's barely enough 200 days? Probably not so concentrated after all and maybe not a cost effective source of minerals for growing spirulina?

I found the following alternative: nowfoods.com/Supplements/Products-by-Category/Minerals/Colloidal-Minerals/M003345.htm

Nearly 1l for less. Just ordered some from amazon.co.uk to try.

But I still plan on making my own (from sea salt) , once things have settled here.

Did you fin any pre-chelated iron sulfate somewhere?

No, I just use straight iron sulphate powder.

Thanks Jetijs for the shipping time info, sounds like algaes are more resistant then I would expect, let's wait and see what shipping will be suited.

Found some plankton filter that might be useful, or are they too fine for spirulina?
Gewebe Siebgewebe zum sieben von Plankton Artemia Krebse Fischzucht Fischfutter | eBay

Their too big - needs to be around 50um aka 50 micron.

[Savvypro]

I'm not sure what to make of it, but I just saw the following on the front page of the UTEX site:

Starting April 1, 2012, the price of our Living Algal Strains (10-mL agar and 15-mL liquid cultures) will increase from $75 to $90 USD per strain for individuals and commercial companies, while pricing for US Academic and US Government institutions will increase from $30 to $40 USD per strain. Pricing for other products and services UTEX provides will not change. Please visit our FAQ page for additional information. If you have questions regarding this change, please contact us.

UTEX is increasing the price for cultures from the 1st of April. It's too early to be an April fools...

[Savvypro]

[echinoidea]

hi

hi it is heartening that this is one of the thread that is dedicated to culturing of spirulina being very active and alive. I too started my culture of spirulina and hope one day, it will be the same as yours.
I read a paper regarding culturing spirulina in seawater. and i bought red sea salts as my starting medium. I followed the instructions by adding NaHCO3 to precipitate off excess Ca and Mg ions, while increasing the ph at the same time. I decided to experiment with 2 samples, 1 with just seawater and 1 with seawater+ NaHCO3. spirulina was growing well at first, but started turning pale green for the first culture with just seawater. as for the 2nd culture, the spirulina stopped growing and i can see salt crystals precipitating in the media. I do not know the reasons why, probably due to insufficient nutrients or inadequate sunlights, can anyone help me with this? thank you. Do i need to add iron and nitrates into the medium? thanks alot.

[Savvypro]

[echinoidea]

hi savvypro, thanks for your prompt reply. here is the link to the paper that suggest using seawater
High value pigment production from Arthrospira (Spirulina) platensis cultured in seawater 10.1016/j.biortech.2010.06.120 : Bioresource Technology | ScienceDirect.com
if u need it, i can share with you, maybe pm me? hmm.
i decided to use artificial seawater since its easily available from the aquarium shop. its a red sea brand. http://www.redseafish.com/index.aspx?id=4163
i dont think its a adaptation problem since it can grow well initially with the medium for about a week?
just wondering, because u have used sea salts as well, that do you also have spirulina growing purely on sea water salts, or require additional ions? i read from somewhere that the yellow means a lack of nitrates, or excessive light, but i am not sure about that. but my addition of NaHCO3 has surely caused some of my red sea salts to be precipitated out. hmm.

[Savvypro]

hi savvypro, thanks for your prompt reply. here is the link to the paper that suggest using seawater
High value pigment production from Arthrospira (Spirulina) platensis cultured in seawater 10.1016/j.biortech.2010.06.120 : Bioresource Technology | ScienceDirect.com
if u need it, i can share with you, maybe pm me? hmm.
i decided to use artificial seawater since its easily available from the aquarium shop. its a red sea brand. http://www.redseafish.com/index.aspx?id=4163
i dont think its a adaptation problem since it can grow well initially with the medium for about a week?
just wondering, because u have used sea salts as well, that do you also have spirulina growing purely on sea water salts, or require additional ions? i read from somewhere that the yellow means a lack of nitrates, or excessive light, but i am not sure about that. but my addition of NaHCO3 has surely caused some of my red sea salts to be precipitated out. hmm.

Sent you a pm.

I don't currently have any samples growing in just sea water - yet.

Without seeing the paper and doing a test myself, I would say that what you are seeing could be a combination of both. As Real sea salt is about 16% other elements - the rest being NaCL. In the medium I make (Zarrouk medium, but use sea salt instead of just pure NaCL), NaCL isn't that much compared to other chems like Sodium Bicarbonate.

The way I would adapt the algae to sea water would be to start off with normal fresh water medium then drip feed sea water medium, so that the medium becomes more and more sea water giving the algae time to adapt over.