Hello all! The circular calculator that comes in the Taylor test kit- how much stock do you put in it? Here is the problem I'm considering: Current numbers are as follows- TA 65, PH 7.6, CH 320, Temp 75. According to teh calculator this puts my saturation index at right around zero- great! However, in a few short months my temp will rise to 90 and at that time, assuming I want to keep my TA and PH near where they are at, this suggests I should lower my CH to around 230- which is of course much lower than what TFP suggests. In the warmer temps, if I keep a higher CH and adjust the PH/TA, these values again fall lower than what TFP recommends for me. I've heard in these forums that water temp is not considered a major player in balance but this calculator suggests otherwise. I would love to hear some expert thoughts on this subject Thanks!