Hello
I’m using 100% RO water into my 200Gallons tank, 4 months since it was installed.
My water parameter with API testing and PH electronic pen are:
KH: 2
GH: 1-2
PH: 7.7 7.8
This parameter had been very stables since the beginning ( I think it is for the sand that buffer the ph, I don’t have any rocks) and I hadn’t have any problems with my fish, I introduce some tetra cardinals for testing and no problem so far.
So, my question and thank you in advance, I want to have a lot of tetra cardinals (from breeders not wild caught) and obviously maybe 10 hybrid discus, do I need to worry about my High PH? , or I continue as I have doing so far with stable parameters.
thanks