Live Stoners Strange Observation w/Molasses and pH

[achesnpains]

I mixed my aged H2O, bloom nutes and Molasses. I pH'ed up to 6.6 and set aside to use next day.
By next day, pH had dropped to 5.4 and I had to pH up again to meet my target. I speculate that sugar fermentation occurred overnight which dropped the acidity.
Questions:
1. Is my hypothesis correct?
2. Are there implications on soil pH if one uses fresh mixture instead of the secondary pH'ed mix?

 

[AutoWonders]

You might try posting in the Nurtrients section for help.

 

[bad dragon bzzz]

i shook up some mollases and a splash of water,when i undid the bottle top it hissed at me.Co2 ?