I got live phytoplankton from my LFS yesterday. I’m wanting to culture it. It’s a 6 oz bottle of phytoplankton. Imma be using a 12 oz Gatorade bottle to culture it. I got my saltwater mixed to 35 PPT. My question is how much saltwater I should be in their bottle? I’m only wanting to use half the 6oz bottle of phytoplankton I got, to see if I can start the culture my self. For the fertilizer I’ll be using my plant fertilizer. Also, not sure how much to add if that. Any advice or help will be greatly appreciated.