Someone pls help me

OK GANG, SSTUPID QUESTION MAYBE?????

I have grown quite a few crops and take meticulous care of my plants but some crops seem to be very potent and some seem to be very weak and i dont understand why. and yes i am growing the same strains every time. what decides the thc potency and how do you check it??????

Maybe some plants are weaker than others? To check thc potency you can take it to a medical marijuana lab.

Are these clones or from seed.

Grow out seed.Select the best.Clone the best.

Well it can depend on when you pic your crop as amber trichomes have more kick to them and feel more potent. If that is the same clones from a clone and not seeds cause in that case u could be growing Differnt phenos.

I'm sure it's seeds since clone hasn't been mentioned,seeds are like a box of chocolate you never know what you are gonna get,i can take a seed from some low grade and grow it well and make better weed,or i can grow 10 seeds from a from the same plant that has purple genetics just for example and get a whole different taste,color or no color and different potency but in the end i believe the better the grow the better the smokes.And with my seedlings they get ruff treatment if they survive week 1 then they are good to grow,i started 20 seeds and i gave em all a harsh overdose on nutes (seedlings can take it) and i think 12-14 lived (not sure) but the plants i have budding now smell dank as hell in 3.5 weeks of flowering just think @8 weeks how the smell will be.So stability is the overall key factor in plant health/strength and genetics.