Phytoplankton Culture Duration

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I posted this in the nutrition forum but it got no answers, so I’m trying here.

I have upgraded my phytoplankton culture setup from 16oz, 64oz to 1gal containers. Normally I would harvest at day 5 or 6 but the 1gals seem to be taking longer. I’m at Day 7 right now. Do larger containers take a longer time? When I first started culturing in the smaller containers I started with Nannochloropsis and have not had any crashes. The salinity is 1.019 and I put 3ml of Micro Algae Grow for the 1gal cultures.


This is what I started off with first.
0C0B5053-861B-4887-8693-26FA86B8D8C9.jpeg


This is the upgraded version.
931815E0-010B-4F4B-A768-1DAAE507559F.jpeg


4E3A028D-D771-4899-B1C8-F65ECACBFB19.jpeg


36644609-9B30-4D96-A0D3-73490F3F168C.jpeg


When it’s in the 1gal it seems really dark.
5F8A6459-0C64-4DC2-AAB7-9052D595D42C.jpeg


But transferred to the 16oz it doesn’t have the dark green.
31AB6A57-8D6E-43B9-806A-C62703772199.jpeg


But if I put the bottle on top of my strong flashlight it shows the dark green. This is Day 10
DE9420A3-7257-4FDF-87AB-A393531C48B7.jpeg


This is Day 13. Should I let it go longer or do you think this will be the darkest?
80695216-9CB4-41C3-A10D-F41808E0C15C.jpeg



Nick Rose
 
I posted this in the nutrition forum but it got no answers, so I’m trying here.

I have upgraded my phytoplankton culture setup from 16oz, 64oz to 1gal containers. Normally I would harvest at day 5 or 6 but the 1gals seem to be taking longer. I’m at Day 7 right now. Do larger containers take a longer time? When I first started culturing in the smaller containers I started with Nannochloropsis and have not had any crashes. The salinity is 1.019 and I put 3ml of Micro Algae Grow for the 1gal cultures.


This is what I started off with first.
0C0B5053-861B-4887-8693-26FA86B8D8C9.jpeg


This is the upgraded version.
931815E0-010B-4F4B-A768-1DAAE507559F.jpeg


4E3A028D-D771-4899-B1C8-F65ECACBFB19.jpeg


36644609-9B30-4D96-A0D3-73490F3F168C.jpeg


When it’s in the 1gal it seems really dark.
5F8A6459-0C64-4DC2-AAB7-9052D595D42C.jpeg


But transferred to the 16oz it doesn’t have the dark green.
31AB6A57-8D6E-43B9-806A-C62703772199.jpeg


But if I put the bottle on top of my strong flashlight it shows the dark green. This is Day 10
DE9420A3-7257-4FDF-87AB-A393531C48B7.jpeg


This is Day 13. Should I let it go longer or do you think this will be the darkest?
80695216-9CB4-41C3-A10D-F41808E0C15C.jpeg



Nick Rose

Very cool, comrade. I'm planning micro algae culture, in planning stages
 
What other phytoplankton can I Culture that would be dark green that I could mix with the harvested Nannochloropsis?
 

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