Potassium Calculator

[7hogwarts]

Is there a potassium calculator that can get added to the Reef calculator section? If not, can someone suggest one to use?
Thanks

 

[Crabs McJones]

http://www.ultimatereef.net/pages/pot_supplement/

Is there a potassium calculator that can get added to the Reef calculator section? If not, can someone suggest one to use?
Thanks

 

[Randy Holmes-Farley Verified Community Expert]

This is a very useful calculator as well:

http://www.theplantedtank.co.uk/calculator.htm

 

[7hogwarts]

Thank you for the links.