I brought my FC up to 13.5 ppm last night.
I added 2 full gallons from around 3pm(zero FC)->till 8:30 when I hit 13.5 ppm.
This morning at 7:30am FC was down to 2 ppm, water still looks perfect.
do I just go back to 12-13 ppm? was that enough since it ate most of the FC over night?
CYA = 30 ppm
FC NOW = 2 ppm
CC = .5
TA = 180
PH = 7.2
CYA = 25-30
I assume other numbers are not a matter at this point. I did all tests late yesterday and they are posted above.
I did RE check the CYA, in case i had it too LOW. first check was 25, 2nd test was 25-30ppm(8pm last night)