ph

The pH is a measurement of the hydrogen ions (H+) and the hydroxide ions (OH-) in a solution such as water. The range of pH is from ‘0’ (very acidic: the concentration of H+ ions is higher than the concentration of OH-) to ‘14’ (very basic: the concentration of OH- ions is higher than the...

Hi I have recently started a small plant and it is curently suffering from what I can only guess is a deficiency of some sort. Their is a brown patch on one of the cyldone leafs and they are curling down towards the soil also their might be a slight changing of the green colour of the leafs I...