Phyto Questions

[xeon]

I have been culturing Nanochloropsus (Jap. Chlorella) I got from Florida Aqua Farms for about two years. I was thinking to get new cultures and start over... but I am a little confused over the different Nanochloropsus I have seen mentioned here and there. I.E. oculata, salina and (Japanese) chlorella. I can't seem to find any basic info on these. I will probably just order more of what I have... but I am interested in the differences between these... if there is any.