Tylerj88 Posted August 11, 2021 Share Posted August 11, 2021 I’m losing Coral and desperately need help these are the readings we’re getting. ALK: 209 ppm Mg: 1278 PH: 8.1 Ca: 237 PHOS: 0.0. Nitrate: 1 What needs to be changed? Quote Link to comment
seabass Posted August 11, 2021 Share Posted August 11, 2021 Reef Parameters per: http://www.reefkeeping.com/issues/2004-05/rhf/ Table 1.� Parameters critical to control in reef aquaria. Parameter: Reef Aquaria Recommendation: Typical Surface Ocean Value:1 Calcium 380-450 ppm 420 ppm Alkalinity 2.5-4 meq/L 7-11 dKH 125-200 ppm CaCO3 equivalents 2.5 meq/L 7 dKH 125 ppm CaCO3 equivalents Salinity 35 ppt sg = 1.026 34-36 ppt sg = 1.025-1.027 Temperature 76-83° F Variable2 pH 7.8-8.5 OK 8.1-8.3 is better 8.0-8.3 (can be lower or higher in lagoons) Magnesium 1250-1350 ppm 1280 ppm Phosphate < 0.03 ppm 0.005 ppm Ammonia <0.1 ppm Variable (typically <0.1 ppm) Are you dosing alkalinity (or pH buffer)? Dosing alkalinity can push calcium out of suspension (especially when magnesium is low). I recommend 15% water changes twice weekly to try to rebalance your water chemistry. Your nutrient (phosphate and nitrate) levels are also low. Water changes will only make this worse. Some people would suggest more feeding, others dosing these inorganic nutrients. Quote Link to comment
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