Humic/ Fulvic acid raw organics. Will this hurt my micro colony?

The p.h in my super soil was starting to creep into the mid 7's. 7.5 is when I start to get worried. I thought the soil becomes more acidic as the organic matter gets broken down by the microbes.

I'm new to organics, so i am learning this stuff as I go. Been reading articles, forums, anything i can get my hands on.

Anyway, will this product kill all of the precious microbes I have been herding? I just want to bring down my p.h. my plants are looking a bit dark I. The leaves and the main thing I've been doing to combat this is dropping actual limes In my water

Any helps greatly appreciated

If you purchase fulvic and humic powder you get a lot more for your money. I get mine from kepl4less but there are a lot of places to pick it up. I add a teaspoon of powder per gallon of water and a pound has lasted me a couple of years. I appreciate all the products out there but feel that the liquid products are mixing the same powder I use into water.