Lowering PH in water organically

I am using filtered tap water that is PH of 7. I am obviously looking to lower this and shooting for 6-6.5. Currently I am adding a lemon juice but it appears I have to use a ton making it not an economical option. It goes without saying I am looking for an organic solution. My thought was using using Citric Acid. I have found liquid and powder forms. Would this suffice or is sulfer the best method. Lastly I was thinking of using PH up and down that is intended for hydroponics.

5 gallon pots, 4x4 tent, LED grow. These are all auto's with 24/7 light.

Thanks in advance for any assistance you my offer.

A pH of 7 is just fine. Near perfect, in fact. You will cause more problems trying to "correct" the pH in an organic grow than you will just using your water as-is. If it had a pH of 8.5 or 9, I MIGHT consider lowering the pH, but probably still wouldn't mess with it. As soon as that tap water sits in your soil mix for a few minutes it will match your soil's pH.

Really though... It ain't broke, so don't try to fix it.

Molasses......

Thank you!

Your welcome. Good luck!