Does anybody else's fish do this?

[PheonixKingZ]

I use the API test kit; there's another one that is said to be more accurate and easier to use, but I can't remember the name. @PheonixKingZ ?

Salifert test kits are generally more accurate than API, but they are more expensive.

IMHO, it’s better to know your exact parameters so you can know what’s really going on.