I think only KH acts as buffer for pH?
Can my pH be stable even without KH?
My goal is to eventually get discus, so I will aim for what will be the best conditions for them.
Everything will be automated, so it's only a questions of finding the recipe that works best. I can use either tap or RO water, but not a mix.
I plan to go with RO water, I already have the unit, I think it will be easier to control and it allows me to get better water parameters for discus.
I will dose EI, use CO2, and have daily water changes (probably 10%).
So, will GH Booster be sufficient, or do I need to add something else and raise KH?