Is a ph tester a must have if only growing two plants for personal smoke?

Getting redness on new leafs coming up and couple of orange dots on 1 leaf also. Was doing this whole thing for a cheap laugh at first but the effort I’ve invested in it now I don’t want to fuck them up. Any advice is appreciated

Yes.

First pic say's "FEED ME"!

As to your question....
Not if your growing in soil, and you know what your doing.
Other wise, it's a good idea to have one around. Worry about ingoing liquid pH and not about the soil pH. If you control the first one. The second one falls in place.

If you run Coco or a coco mix or Rockwool or any hydro. You bet you ass it's needed.

Dr. Who said:

First pic say's "FEED ME"!

As to your question....
Not if your growing in soil, and you know what your doing.
Other wise, it's a good idea to have one around. Worry about ingoing liquid pH and not about the soil pH. If you control the first one. The second one falls in place.

If you run Coco or a coco mix or Rockwool or any hydro. You bet you ass it's needed.

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Thanks for feedback, it’s really hard to get this right with no knowledge feel like I’ll be a rocket scientist by the time I’ve got this to a tee lol so I’ll get a ph tester, any recommendations?
also you say it’s screaming feed me. I am on a budget and was advised to buy old timer bloom(apparently would do the whole grow) but obviously not the case for this plant or strain. I found some baby bio original last night so contemplating putting them on that instead, what you reckon?

I got away with using a test kit for a couple of very decent grows, BUT not with the hydrofarm ph kit that's everywhere, my favorite PH test kit is the Sera brand, much more accurate and easier to read colors. The cheap ph pens are junk mostly, you'll need to spend at least $50 for a decent one, plus the solutions, distilled water, all that jazz. I still use the sera kit as a backup and to double check sometimes. You can probably get away with not using anything in a soil grow, but I say you should still get the test kit even then. Good luck friend!

Jambo94 said:

Thanks for feedback, it’s really hard to get this right with no knowledge feel like I’ll be a rocket scientist by the time I’ve got this to a tee lol so I’ll get a ph tester, any recommendations?
also you say it’s screaming feed me. I am on a budget and was advised to buy old timer bloom(apparently would do the whole grow) but obviously not the case for this plant or strain. I found some baby bio original last night so contemplating putting them on that instead, what you reckon?

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You should use a good veg feed. you want to be around an NPK of 6-1-2.
For bloom? NPK of 4-6-6 is premo for most of the strains I run.

Learn to get this part right and then the world will open up for you to try simple amending to that formula.
"I" increase the S and the the K (just a bit) from the week before the flip to week 4 or so of bloom.
Been doing this so long I don't do anything but look at them and know what they need and when to apply/remove it.

As for a good pH meter?

H&M makes this one -

This is one tough meter. Just be sure to calibrate it every month AND KEEP THE PROBE DAMP! If you see a big change in your water or liquid pH by a jump or a fall. Calibrate it again.

best thing would be to pH to 6.5 in veg and 6.7 in bloom - ALL the ingoing.

use litmus paper.