I’v decided to do a basic kelp tea for some of my potted flowers (petunias) that are top yellowing was wondering who out there bubbles there kelp and for how long ?
If i am just bubbling kelp and molasses i just go 24 hrs. If i am doing a compost tea with kelp and molasses i go an extra 12 to 24 hours.
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This will answer a few questions you might have.
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Yeppers 24 hours is good. Can even do less if needed. And this trick by coot! DIY Instant Kelp Meal Tea - Coots Hydrated Kelp Meal Trick – BuildASoil
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Thanks for the link looks like a great source !
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Ahhh petunias, my other favorite annual, 
I had the same tea bubbling for years, 2 liter bottle with an air pump. I call it a perpetual tea, I have a microscope on hand to look at the microlife. I personally like brewing tea this way, the microlife develops over time, you have a more complex micro heard over time, I would add typical commercial inoculants, and soil from the park that was under leaf litter.
The only thing that didn’t last in the tea that had kelp in it was fungal hyphae, they were short lived but could be flipped to a fungal tea with the addition of carbohydrates like oats or rice, and hit with a commercial myco inoculant.
It takes a bit to learn how to manipulate the tea, but its fairly easy, add your feed like kelp, then do a wet mount for your microscope to see what the tea is doing.
So the typical tea that had kelp in it had lots of microbes and amoebae, perfect for most annuals, another positive benefit of the longer brewing teas is glomalin, or its assumed the sticky viscous nature of the straight tea contains glomalin, a key component of soil tilth.
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A post was split to a new topic: Any recommendations on microscopes?