method

first i collected 6 plants (for repetition) and divided them into 2 groups, the acid water group and the tap water group. ( the things that i kept the same between all the plants were the plant type, amount of water, type/amount of soil, pot size, location)
Then, for the next two weeks, i plan to water them at the same time in the morning and at night (8am and 8 pm) with their specified water types.
Each day i will take a picture of the plants to see if there are any changes in them, and record all changes and observation

This is how i set up my experiment

do i need anything else? :S