Orp rising

[scotty333]

Guys
My orp reading has been 350 and it runs in the night so in the morning it’s down to 320

Last 2 days it’s been reading 370

What would increase it on its own?

 

[Randy Holmes-Farley Verified Community Expert]

pH lower, random error, some low ORP material added? Different time of day…

 

[scotty333]

Ph is a mystery with my probe , I need to buy a new one
2 days in a row seems regular rather than a “1” off but I’ll see tomorrow
Not added anything other than the regular food and some trace which is constant
Like I say , it’s normally 350 in the morning and drops to 320 towards the end of the day

 

[scotty333]

380 this morning , cut off is 400