Help on reaching desired parameters
Goodeveing everyone. I have sort of a broad question. My water out of the tap and aged for about a day has a pH of 7.4, KH of 80 ppm, and a GH of 200+ ppm. My water is pretty hard and want to start keeping more advanced plants (I am using pressurized co2). I am planning on getting an Ro unit from bulk reef supply. I am also going to be changing my fertizling method from co op easy green and iron to the ei method. I am going to get the 5 jars fertilizer and 2 bottles pack from gla. As well as some extra iron incase I need it, and 2 gh boosters too remineralize the ro water for the aquarium. The question is, what would be the best way to lower the water parameter in my planted aquarium without shocking the plants and fish. I was thinking at first doing 20 percent water changes, 10 gallons of ages tap water with 10 gallons of pure ro water with no remineraliztion (55 gallon tank). This will over a course of time drop the ph,soften my water, and lower the kh. I dont know yet how I should do it. OR should I remove the fish, put them in a spare qt tank i have, and do a 100 percent water change with ro water, and remineralize the ro with similiar parameters as the old water, and then start doing water changes with remineralize ro water, but lower the amount of remineraliztion over the course of time so I can reach my desired parameters. Thx for the help in advanced!