With ph up and ph down you buy at hydroponics store. Be careful with ph down it's acid!!! And gradualy lower or increase ph. The better way of keeping ph adjusted is adjusting theph of the feeding solution or water. you can add dolomite lime to the soil , keeps the ph of the soil stable for long!!!
canadianhemperor Reviewed by canadianhemperor on . How can i lower and higher my pH and does perlite affect pH? Hey im a first time grower and i am just wondering how to alter my pH levels and if perlite affects the pH as i am using this with MG all purpose compost, does anyone no? Rating: 5