Best Reef Tank Test Kits (2026): Salifert vs Red Sea vs Hanna
Read post →How to Raise Alkalinity in a Reef Tank Safely (dKH Guide)
Read post →Running Lower Alkalinity in a Reef Tank: Why, When and How (6.5–7.5 dKH)
Read post →Denitrification in Reef Tanks: How Bacteria Remove Nitrate (and What It Does to Alk)
Read post →Phosphate in Reef Tanks: Targets, Testing and How to Lower or Raise PO4
Read post →Magnesium in Reef Tanks: Why It Matters, Target Range and How to Dose
Read post →Calcium in Reef Tanks: Target Range, Testing and How to Raise It
Read post →Alkalinity Swings in Reef Tanks: Causes, Damage and How to Stop Them
Read post →Nitrate and Phosphate Balance in Reef Tanks: Getting the N:P Ratio Right
Read post →How to Calibrate a Refractometer for Reef Tank Salinity (35 ppt / 1.026 SG)
Read post →Reef Tank Testing Schedule: What to Test Daily, Weekly and Monthly
Read post →How to Cycle a New Reef Tank: Fishless Method, Timeline and Tests
Read post →Two-Part Dosing for Reef Tanks: Recipe 1, Pumps and Daily Setup
Read post →ICP Reef Test Results Explained: How to Read Trace Elements Without Overdosing
Read post →Hanna Checkers vs Titration Test Kits for Reef Tanks: Accuracy and Use
Read post →Reef Algae Outbreaks: Use Water Tests to Find the Cause (Hair Algae, Cyano, Dinos)
Read post →Reef Tank Water Changes: How Much, How Often and How to Match Parameters
Read post →RO/DI Water for Reef Tanks: TDS, Filter Changes and Why It Matters
Read post →Reef Tank pH: Normal Range, Daily Swings and How to Raise Low pH
Read post →STN and RTN in SPS: Troubleshooting Tissue Loss with Water Tests
Read post →Want the deeper science? Visit the reef science hub.