New to the site and to growing. Need help

Thanks for all the replies. I believe I found my problem. I recently went on vacation and had to pay a friend to baby sit. I was also low on ph down and bought a new bottle. I left him instructions and he followed them but what I didn’t realize was I ordered a different brand of ph down. So instead of dropping my ph to 6.4 with one teaspoon. It was dropping it to 2.3 with one teaspoon . Rookie mistake
 
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