Green Water Culture recipe.

Ballyhoo

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Jun 27, 2010
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Fairfield, CA
I was going to make a green water culture. After doing some reading I'm going to take some water from my tank that has an algae bloom and put it in a jar with an algae wafer and put it in the sunlight.

Will this work out ok? and does it need to be covered?
 
Thats pretty much what I did. I put an algea wafer in some aquarium water and added a pinch or miracle-gro. I also added an aerator to the bottle I was using (2L). I had an algea bloom in about a week and it was really growing by week 2.
 
i never bother with aeration. If you are using already cloudy/greenish water from a tank it shouldn't take long to get going.

I used to keep mine covered with a small hole filled with filter floss to let some air in, but I found out that leaving the top off completely makes the culture go faster.
 
also a gd 1 is tank water with a lettuce leaf in it and leave it on the window sill to grow culture
 
What you do with the green water depends a lot on why you are growing it. The only thing I have used it for is to feed a daphnia culture. To use it I add enough green water to visibly tint the daphnia culture a greenish color. That way the daphnia get enough to feed on.
 
What you do with the green water depends a lot on why you are growing it. The only thing I have used it for is to feed a daphnia culture. To use it I add enough green water to visibly tint the daphnia culture a greenish color. That way the daphnia get enough to feed on.

I'm growing it to feed small fry.
 
This might sound dumb but can someone go into more detail with this? Like how long you can keep the culture if it expires or post of a picture of theirs? I have a 2 liter bottle with the top cut off full of tap water and some crushed up lettuce leaves sitting by my window to get sun light. I also capped it off with some foil with holes punched in it for air.
 
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