Water change code

[spsfreak1977]

Looking to use my dose to do a 5 gallon water change on Wednesday and other 5 gallon water change on Sunday
Can this be do and if so what would be the code
Or maybe just a code for 10 gallons every Sunday what would be better ?


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[tomreefer]

This will help I think:

https://www.neptunesystems.com/getstarted/dos-2/dos-awc/