HELP! NastayNatron's tank

[Cal_stir]

that PH is too hi, what are you measuring the PH with?
are you sure the water is running through the sump and the skimmer is running, the bubbles should be half way up the cup.
do you have an air pump and airstone you can put in the tank, this will help lower the PH.
vinegar will lower the PH instantly, you can add a tsp full of WHITE vinegar to a high flow area in the sump and lower the PH.
you need to find the reason for the hi PH, if it continues to climb you will lose everything.