Have 67 gallons of water in a 3 yr heavy coral mixed tank. Dosing 24 ml per day Triton "other methods" equally ( 'frug only 6% of tank volume and don't have 10 times per hour recycle hence "other methods") but that is still not enough and have to add 40 ml soda ash per week when alk gets below 7.0 hk to bring to 8 kh +/-. Ca low 426 also but Mg is on high end 1395. Corals all look good, growing well to the point of trimming SPS. I know I could keep adding soda ash but I want to use the Triton chemicals and dose properly. Tested between days and use .28 kh per day. Dosing Triton 24 ml per day is not enough. With adding 40 ml soda ash per week and 24ml Triton per day what should I bring up the Triton dosage to 8 kh +/- so I don't have to add the soda ash? Just seems that my tank at 67 gallons total water volume uses a a lot of alk to keep at 8 kh and worried to just keep on adding Triton to 25, 26, 27 ml per day etc. Afraid to keep dose at 24ml past 7kh drop to see where the alk levels out and stabilizes. Don't want to mess with success for it was not easy nor cheap to get here... had my problems througthout the years for sure. Could a math guy please take a try on where the Triton dose should be? Thanks in advance.