Tools
Calculators for planning a tank and keeping its water right
Planning
Water quality
- Water change plannerHow much water do I need to change to keep nitrate down?
- Free ammonia calculatorHow toxic is my ammonia reading at this pH and temperature?
- Fishless cycle ammonia calculatorHow much ammonia do I add to cycle my tank?
- Planted tank CO2 calculatorHow much CO2 is in my planted tank, and what pH should I aim for?
Equipment
Saltwater
- Salinity converterWhat is my reading in ppt, specific gravity or conductivity?
- Mix saltwaterHow much salt do I mix into new water?
- Adjust tank salinityHow do I bring my tank to its target salinity safely?
- Water change salinityWhat salinity do I mix water change water to?
- Hyposalinity plannerHow do I lower salinity to treat marine ich, and bring it back?
- Reef dosing calculatorHow much calcium, alkalinity or magnesium do I add?