Dear all i have mu KHD working perfectly with reef tank since 2 years and recently i converted my tank with fresh (tanganyka biotope) tank. Usefull to say that kemical parameter with my new tank are quite similar to salt water been the KH approx 17 dKH and GH 4 dGH. Sometime titolation is too long and system goes in error, sometimes the value is fine even if the icon is red because maximum range allowable is 14 dKH. Any aexperiences/suggestion ec,,, even in increase the 14 max limit to 20? (for istance)

thanks for support