Alrighty folks, I finally got my ph kit in and let me tell you, it surely has opened my eyes to another whole aspect of growing. Both of my tubs tested around the 8.5 to 9 range. I added one tsp. of ph down to each tub. I'm going to retest later in the day, so as to give it some time to adjust. In the meantime, I decided to run a rough test of what my ph is from the tap. What I got was about a 6.5. Now this is based purely on what I perceive to be a match to the color chart. After adding one tsp. of superthrive I retested the ph, and found it to be about 7.25-7.5. I proceeded to add two tbsp. of mother earth bloom tea and tested again and I gathered this one to be about 7-7.25. With Cal Mag plus added the ph tested about 7. For each test I used three drops of ph test fluid. Before I put up my testing stuff, I decided to test one more time after adding one tsp of ph down. The solution tested at 5.75-6. Strong stuff. I wont test the solution again till I have to use it, which will be awhile. Oh before I forget, I used a gallon of water.