Hello addict...adicted to fish said:does anyone know
Hello...AJE said:The amount of water you change each week has to do with how your tank is stocked
Even if you had one small fish in a large tank, you'd still need to change most of the water weekly, if you wanted to maintain the best water chemistry for that fish. The minerals in water that's constantly running through a filtering system are changed by the hour. The longer the same water stays in a tank, the more it changes chemically. Nitrogen in the air drives off oxygen in the water. The nitrogen added by the fish waste and using fertilizers for aquarium plants also drives off oxygen. So, you need to remove and replace most of the tank water every week to replenish minerals and oxygen.
Interesting...AJE said:I didn’t say you don’t have to do water changes, you just don’t have to do large water changes depending on your stock. I some cases it might be harmful to the inhabitants to do large water changes