ph problem?

[Noodus]

i have a 18gallon cube with the works... MH, 2x chillers, tunze nano skimmer, tunze nano powerhead, neptune controller. chemipure and some filter floss on my overflow.

1 neon goby, 1 small longnose hwk

few crabs and snails. a small variety of coral.

anyway my ph has spiked recently.

started around 8.3-8.6 now it's like 8.4-8.8

should i be worried?

 

[reefman]

r u dosing anthing to cause this? if not, what r u testing your ph with?

 

[Noodus]

no dosing, i'm using a ph probe from my controller.

 

[pEEshEE]

What's the pH in the auto top-off bucket read?

 

[Noodus]

ph in my auto top off is 9.1!!! why?