Testing pH of my soil mix BEFORE I grow?

I’ve been paying more attention to pH’d water and pH condition this grow, and I’m getting ready for the next one.

I mixed up a batch of 3:1 potting mix/Ocean Forest, compost, with ~40 pct perlite, and then a little guano, castings and bone meal.

I plan to move a plant from a plain Solo cup start into a one gallon with this mix.

Can I test its hotness before I have a plant in it?
How do I do that? Put a few 7.0 gallons through and measure the pH of the runoff?
What can I do if it is hot or low?

My next “self-course” is probably going to have to be in measuring nutrient uptakes and PPM, but I’m reluctant to do that. lol

But can I/should I test for soil hotness before I even plant? This seems like something I should really probably do, because this seed in particular is very special.

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Is there a reason youre diluting the ocean forest? I see alot of new growers tinkering with it and they end up running into deficiencies right before flower. I started seedlings in ocean forest for years. Its not hot. Quality has gone down hill tho.

If you dont like it for seedlings just transplant them from a happy frog and into the OF. Let the plant exhaust all the nutrients from ocean forest then go from there.

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I’m not sure why you want to test an activity that don’t exist yet. Testing the EC of the drain to know if it’s “hot” why not but the PH of a fresh soil … just read the packaging ? ^^

There really isn’t any package to read from, really. . .it was a custom blend that started with relatively small amounts of packaged products (the OF and the basic potting soil that I started with).

So I can measure the EC but the pH reading of the run-off won’t matter until there’s a plant in there? I’m confused. Thank you.

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I don’t understood well the context at first glance, more clear now. Take it in count.

Yup, the activity of the plants matter for the soil’s life. The “organic wave” have a bit too much pushed to consider the strict reverse in ignoring the symbiosis.

Now with soil i’m quite radical. When i throw some seeds outside, “i don’t PH the planet”. So i do strictly the same indoor.

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Is there a reason youre diluting the ocean forest? Yes – it’s all I’ve got right now. It works out about to about 1/3 of a gallon. I’m only making enough soil here for a one gallon pot.

I’ve read that OF tends to be hot, but I don’t plan on using FF soils anymore – I would rather start building my own, even if that simply means mixing it my own ferts or top-dressing a various stages, or a combo of both.

Easiest test I’ve heard:

Sow tomato seeds or transplant tomato seedlings & if ‘dey happy :+1:

And try some ‘cress’ :thinking: as any nutrients will supposedly kill/stunt/burn.

Based on the description my guess is it is over 7 pH out of the gates, but this is only an issue for hydro & containers, or if the water is hard.

If they go into healthy soil(actual dirt, the ground, or @Foreigner’s left ear) the pH will be all managed for you. 7.1 water? No problem. :+1:

:evergreen_tree:

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Foreigner right now: “why the hell am I getting dragged into this??” :laughing:

Thank you for this. I like the idea of moving a tomato plant in there for a bit. . .

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What’s that I can’t hear you I’ve got fire growing out of me.

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