Auto Midnight Posted January 31, 2015 Share Posted January 31, 2015 My tank is only 1.5 months old and contains 1 stylophora, 1 acropora, 10 polyp zoa, 1 plate. 2 sexy shrimp. My water parameters have been consistent since I started the tank. I am doing 100% water change every Friday. Every week my test results are as follows Old/ New pH 8/ 8.2 Alk 8.7/ 12.6 Ca 460/ 460 Mg 1600/ 1600 Ammonia 0 Nitrite 0 Nitrate 0 Phosphate 0 (I highly doubt this considering the amount of algae in my tank) What is causing my alk to drop with no change in Ca? Is it worth dosing alk only since I've heard acros and stylos need consistent alk. If so is it best to dose after a testable drop or do I daily dose regardless at 1/7 the suggested dose for the change of the week? Thanks for the help. Link to comment
metrokat Posted January 31, 2015 Share Posted January 31, 2015 How long have you had the SPS? Link to comment
Auto Midnight Posted January 31, 2015 Author Share Posted January 31, 2015 How long have you had the SPS? 3 weeks Link to comment
GMay Posted January 31, 2015 Share Posted January 31, 2015 With 100% water change per week, why dose? What salts are you using and how many gallons is the tank? Link to comment
Auto Midnight Posted January 31, 2015 Author Share Posted January 31, 2015 Red Sea coral pro mixed at 1.025. Total system volume is just under 5 gallons. With 100% water change per week, why dose? What salts are you using and how many gallons is the tank? That's what I'm asking about. Is the drop over seven days acceptable for thriving sps? I have my doubts, thus the topic of this thread. I am not looking to skimp on water changes by dosing. I am looking to keep my water conditions stable between changes. Link to comment
CronicReefer Posted January 31, 2015 Share Posted January 31, 2015 Doesn't really sound unusual to me. My tank has 25gallons total volume and I lose more than 1 point per day in alkalinity. Link to comment
bdare Posted February 17, 2015 Share Posted February 17, 2015 There is nothing wrong with dosing 1 part at a time to keep your numbers where they are suppoed to be. Link to comment
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