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Old 10/29/2012, 07:04 PM   #326
Crazy Designer
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Join Date: Mar 2008
Location: Winston-Salem NC, USA
Posts: 1,027
I see most hobbyists growing phytoplankton in 2 liter bottles. They harvest by splitting the culture and adding fresh replacement salt water. Everyone reports crashes despite meticulous cleaning.

My question is, are large batches of phytoplankton any less likely to crash?

I talked to a guy that said that he grew phyto in white 55 gallon plastic drums, outside in the summer, adding a seed culture and fertilizer or just adding fertilizer. He seemed to be a casual grower but he didn't worry about crashes. Unfortunately, I couldn't talk to him long enough to get any details. I don't know if he was making constant production or just making individual batches.

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