Jgb0808

Dude, for the most part it's something to do with the rockwool, it does the same with other mediums just not as bad. Also something to do with the nutrient uptake and light hitting water.. Its nothing at all to worry about. Just a hassle I know having to adjust so often..
Dont do more than once a day...!
Also make sure you read about you nutes and make sure they don't have ph buffers or like a higher ph... They still look healthy right?

Thanks a lot bro, I will check the ph daily

Possibly, but if your using quality nutes it won't be much. Unless you use nutes with PH buffers it will always fluctuate daily. Balancing PH is a daily chore.

Always before!