Im having a hard time understanding some things about my ppms and ph levels I have a aeroponics and a fish tank bubbleponics my aeroponics ph levels fluxuates so much Im constantly changing them and plants look not so good. My bubbleponics I HARDLY EVEN CHECK and they look the best I THEN CHECK my ppms and ph and the ppms were 11oo (so high because I ADDED SOME EPSOM SALTS ) and my ph was at 7.4 why do the bubbleponics doing so much better Is there anybody that can help please I wonder if i should just let my ph do what it wants in my aeroponics I wonder if im doing more damage to them by changing it all the time.