Help with ph readings

[C_Zwicky]

Hello everyone. Up to this point ive had a ph around 7.4 which ive slpwly been lowering to a 7.0. Unfortuonetly last night i got these readings and im not sure what to make of them. Any help would be really appreciated thanks in advance. Here some test pictures.

 

[blert]

How are you lowering the pH?
Why are you lowering the pH?

 

[Scott F]

...what blert said, How and why?

 

[C_Zwicky]

Im using ph down from api. And im lowering because for my population of fish a ph of 7 is optimal

 

[blert]

There is absolutely nothing wrong with a pH of 7.4. Your fish will be perfectly fine.

Using additives to adjust the pH is a slippery slope that WILL lead to major issues. The best thing you can do is keep the pH consistent and stable. Unless you are a serious breeder their is no reason to mess with the pH unless it is off the scale.