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Originally Posted by trilinearmipmap
So do you mean you culture up the phyto and then when it has grown green you store it in the fridge? How long are you able to keep it in the fridge before it goes bad?
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it lasts about a month.. i haven't had any that's around longer than that. I give the bottles a good shake about twice a week just because the algae settles at the bottom of the bottle.
given I don't have any bottles go bad, I get 16L of phyto every 2 weeks, but need 2L to restart the 8 bottles for the next batch. leaves me with 12L of phyto to play with.