Mugwump's Fish World
THE POND-THE FRESHWATER PLACE => Tank Maintenance and Equipment => Topic started by: Mugwump on October 16, 2015, 08:15:59 AM
...ever wonder how much water to really change?....this neat little tool can be eye opening, and very helpful to keep your water at it's best for your fish..
https://www.hamzasreef.com/Contents/Calculators/EffectiveWaterChange.php (https://www.hamzasreef.com/Contents/Calculators/EffectiveWaterChange.php)