GoatSoup
Well-Known Member
Chemicals are cheap to get anywhere, as soon as you've found the online channels that chemists and pharmacists use.
It only gets complicated when the substances are regulated or can easily be used to make dangerous compounds.
That's apparently not true for silver nitrate and sodium thiosulfate → find a regular online chemical supplier.
One can make far more STS for maybe $20 worth of chemicals than most people will ever need.
Some substances can be found on Amazon with no problem. The reasons are not always obvious: for example, I've been looking for copper compounds suitable for chemical root pruning (ie. paint the interior of a pot with it). By far the easiest to find was cupric carbonate, and I assume this is because it is used to make fireworks (?).
Hint: go on YouTube and find Weed in a Pot and Hemp in a Pot; that guy demonstrates how to make STS and also how to self Autos and regular plants. Very educational content.
Maybe try marine bottom, paint. They use copper to prevent scum growing on boat bottoms.