http://reef.diesyst.com/chemcalc/chemcalc.html HTH
B Brain coral New Member 28 June 2012 #3 nice info gan.. sayang sekali aditive yg sy pakai ndk tercantum di list product :042:
J juuniz Active Member 28 June 2012 #4 pake yg DIY donk.. coba de googling randy holmes solution.. lengkap kok