Ah so it's not ph perfect. I found this on the link you sent, in the Q & A part where they were asked if it acts like ph perfect.
"No, Jungle Juice Grow, Micro, Bloom does not automatically balance the pH although it’s worth noting that Jungle Juice Grow, Micro, Bloom is fully compatible with our pH perfect line of products. The biggest benefit of Jungle Juice Grow, Micro, Bloom is the money you’ll save. The formula for both General Hydroponics’ Flora Grow-Micro-Bloom and Advanced Nutrients Jungle Juice Grow, Micro, Bloom is a very simple formula and they are identical products’ only with Jungle Juice Grow, Micro, Bloom, you save 40% of your money. All that said, however, to get the best results we recommend you use our base nutrient formulas with pH Perfect[emoji2400] technology."