For sure, if its a fresh source and your not short on rent or food, itd be worth 13 dollars to test 1 plant vs another or 2 clones and see if it makes a difference. best advice is just stay away from any cannabis specific product if you want to save money.Alright, so I'll save some 13 bucks on fungi that apparently don't work.
That's the industry problem, hard to know what is marketing and BS and what actually works.