dk is 14 ph 7.8

[raymond2688]

i cant seem to get these 2 right from what i have figured ph buffer will raise the ph as well as the dk. i did a 20% water change peramiters are as follows
ammonia 0
nitrite 0
nitrates 0
calcium 480
phoshates 0
salinity 1.023
ph 7.8
dk 14
any ideas will be greatly welcomed.
tank has been running over 4 months
125 G skimmer canister filter overall waterflow is 2500gph
i have 1 tomato clown
2 lawnmower blennies
2 blue reef chromis
2 fighting conchs
aprox 20 hermits
few mushroom pollups
green.brown zoos
leather finger
few unknown corals

 

[bang guy]

A few things to look for that can cause low PH:
Check to make sure your skimmer isn't clogged and is running properly.
Check all mechanical filtration to make sure it is clean.
Make sure you have enough waterflow and all pumps and powerheads are functioning well.
Make sure detritus isn't gathering and rotting anywhere in the tank.
Never use a buffer to artificially raise PH. If ALK isn't low then adding a PH buffer is ALWAYS a bad idea.