Hello, I collect rainwater because I plan to introduce plants that require soft water, the aquarium actually contains 35 liters of water (51-54 gross). Each week I change 20 liters, last week i changed 20l using 75% tap water and the rest rainwater.
my Kh is 11 and my GH is 17, how high will it be if I use 20 liters of rainwater <= 1 KH, I'm not very good at math
is it risky to go from hard to soft water in one go? thanks
my Kh is 11 and my GH is 17, how high will it be if I use 20 liters of rainwater <= 1 KH, I'm not very good at math
is it risky to go from hard to soft water in one go? thanks