[NEED 4 SEED]

Originally Posted by Douglas.Curtis

Here's a working recipe. Spray every 5 days to get pure male results like the photo. Link As you can see, the plant stays super healthy.

The recipe makes more than a pint, so be aware.

No clue how to check your specific powder, sorry.

That was the recipe I was using last time and it failed but I may have had the pentahydrate. The anhydrous one is ordered and I will do another test with that.

My first reversal, which worked pretty well, was in 2014 where I reverted an Agent Orange lady by using this recipe: https://www.icmag.com/ic/showthread.php?t=199540. Studying my notes from back then I realized I have later changed the frequency to once a week, I don't know why, maybe I got into "the more, the better" feeling. I actually succeeded back then by applying a first spray on day 1 of 12:12 and a second spray the following day and then doing nothing for 22 days. The first pollen sacs became visible 16 days later. Another week later I sprayed a 3rd time and 5 days later the first pollen flew. So this recipe worked (with probably the pentahydrate) and didn't work when I increased the frequency of application. I am learning from that, I will have the anhydrous version and will only spray twice or so.

[NEED 4 SEED]

Originally Posted by Blowmonkey

Pentahydrate are colourless crystals, anhydrous is a white powder. Sigma has the anhydrous formula iirc, if you have pentahydrate you need to multiply the amount of thiosulfate with 0.64.

Mine are pretty big crystals, looks like coarse salt or quartz.

Originally Posted by Blowmonkey

There's all kinds of formula's on the internet, I went with the one I'd seen here years ago. That one left me with way too much sts stock material though, so I downsized the amounts a little. 50 mg of silver nitrate in 50 ml of water, 250 mg of thiosulfate in 50 ml of water, stir both till everything is dissolved, mix the two solutions, stir again, then add 900 ml of water to have a 1 in 9 stock solution. Use less water if you want a hotter solution. Even this stuff can be stored in the fridge for a long time without any noticeable deterioration, I'm talking about at least a year or more.

That's the "classic" formula.

Originally Posted by Blowmonkey

Definitely use demineralised water for everything, no tap, not even for the thiosulfate solution. Also never use more silver nitrate than necessary, you'd rather put in a little more thiosulfate instead of silver nitrate, this way you're sure all the silver nitrate has reacted with the thiosulfate.

Good points (I guess).

[Natural high]

Originally Posted by NEED 4 SEED

Mine are pretty big crystals, looks like coarse salt or quartz.

In that case you likely have the Sodium thiosulfate pentahydrate. In this case, multiply the amount of Sodium thiosulfate anhydrous required by 1.57

[Douglas.Curtis]

Cannabis is the only plant I've seen where the recommendation is one or two sprays. The rest of the horticultural world sprays every 5'ish days. If my plants show stress I would dilute and keep going.

Just an fyi...

[Blowmonkey]

Originally Posted by beanz

how do you know if some need weekly applications and some less ? please explain that too me ? the only thing you could go by if if its not showing balls ...thing is that could be several sprays in if thats the indicator lol

You know, this irks me, because you might be right. Might be, as I have played around with sts a fair bit, but it's not like I've run double blinds and can convince you or myself with any concrete evidence, it's mostly experience, forum posts and science articles which I and everyone else have been basing their methods on. But yeah, let's run a double blind with some numbers. Any suggestions as to concentrations and numbers of plants you'd like to see?

I had a lengthy reply about how we should not consider cannabis dioecious, rather subdioecious, how you cannot gauge how a plant behaves after only one or two grows and especially not outside, how easy it is to reverse has some bearing on it's true sexuality, but none of that matters since it's all conjecture anyways.

The fact that I haven't seen any banana's or balls in over 7 years in different environments on the plants that I find harder to reverse might have no relation with it's dioeciousness, but I feel it does. Still, I'd like to see some confirmation myself as well.