Discus water parameter interpreter
Not sure if your water is right for discus? Enter the values you measured — pH, KH, GH, TDS, temperature, ammonia, nitrite, nitrate — and get an instant color-coded verdict for each one, plus what you need to adjust.
Water parameter interpreter
Enter what you measured — see what's good and what to adjust
Enter at least one measured value to get a verdict.
Indicative only. Parameter stability often matters more than the exact value. With detectable ammonia/nitrite, act immediately.
Learn more
Frequently asked questions
Create your tank in “My Aquarium” and your parameters, volume and tasks stay saved. You also get free email reminders.
Other useful calculators
For water testing
Test kits, TDS/pH meters and conditioners for correct parameters
Water Hardness Test Kit, Sera gH Test, 15ml
Permanent Test for Monitoring Ammonia and pH Levels, Seachem Alert Combo pH-Ammonia (6 months)
Nitrate Level Monitoring Test, Sera Nitrat NO3, 3x15ml
Permanent pH Test, Seachem pH Alert
Permanent Test for Measuring Ammonia and pH Levels in Water, Seachem Alert Combo Ph-Ammonia (1 Year)
pH Tester, Hanna Checker Plus Tester pH with 0.01 pH Resolution, Replaceable Electrode
Oase AquaActiv QuickSticks 6in1 Water Test Strips
Oase AquaActiv Professional Water Testing Set
Catappa Leaves, Sera Catappa Leaves - M
Bacteria Culture Additive, Seachem Stability, 1 L