Automatic water change dosing pumps are designed  to change a certain amount of water every day therefore removing the need of doing manual water changes.

That will help export waste and excess nutrients while importing new calcium, alkalinity, trace, elements and much more in the new water.

 You can either use a pre-built system like the Kamoer  X2SR , or compiling a heavy duty dosing system (continuous duty dosing pump), like the GHL Maxi 2.2 and an aquarium controller.

We highly recommend using pre-built systems for their safety features and simplicity , but with the correct programming any aquarium controller can become the brain behind a safe automatic water changing system.