Parameters/ h20 quality

[Ree]

how does KH and Phos affect my tank

 

[Joeganja]

phosphate affects coral health

 

[Tahoe61]

how does KH and Phos affect my tank

In relationship to one another?

Book mark the link, you'll use it many times hopefully.

Reef Aquarium Water Parameters by Randy Holmes-Farley - Reefkeeping.com