I am starting this culture with hopes that it will be a settlement substrate for Bursatella leachii veligers.
The culture came from
www.carolina.com, was inexpensive and shipped quickly. The downside is you really don't get a lot to start with, essentially just a test tube. I knew this going in, so I ordered two right away, to be on the "safe" side.
Here each is in the 500mL containers:
I wanted to see what the golden yellow stuff was since it looked not at all like a "blue green algae," so I took a bit, smooshed it on a slide a bit so it wasn't just a clump and threw it under the microscope:
At lower magnifications the gold stuff just looked like debris, and I thought maybe it was some sort of substrate that the spirulina attaches to in culture (I really have no idea what I am doing here, so this will be interesting).
Higher magnifications show that the gold stuff also spirals:
So now I think it may be dying/old cells. Still not certain, of course, since I don't really know what I'm doing yet...
Here are some more pictures because it was really fun to look at this under the microscope
In these last two pictures you can see smaller cell strings. If my laptop wouldn't shut down when I tried to take a video, I would have for this because the small, single cell fragments were cruising around a bit. I don't know if this was actually them moving on their own, or just a by-product of evaporation off the slide, but it was pretty interesting.
Currently, these containers are on a shelf above the light at my culture station. This is not their permanent home as it will be too high light for it to thrive (southern facing window and what not). Since it is rainy/thunderstorming all day today, I knew I could squeak by with just putting them there last night, but tonight I will need to move them. I think they will go by the veliger station, but behind the light so they get constant, but low, light conditions. The constant light may be important, at least for the next few weeks, because a quick search last night showed that other Spirulina sp. cultures would lose up to 35% of biomass during the night. Right now I need to get as much of this as I can until I determine if I can or can't use it for the purpose I need.