Originally Posted by MPLS MAN
Ok , i have the same question on raising the ph?
I use the same buffer for dkh, ph.
these were my readings from today...
alk 3.5 meq/l
calc 460
ph 8.0
nitrites 0
nitrates 0
not sure what mag is yet, just purchased test kit today.
i also have a 35 gal refugium that runs on a reverse lighting .
what are your sud on raising ph.?
just did a 12 gal water change on my 75
should i still keep trying to raise the dkh to buffer the ph?? or will the mag raise the ph??
thanks for all the help......
Your parameters look good!
Raising pH is best done, safely and without throwing things out of whack by correct water changes.(24 hr circulation at correct SG/salinity...) I have learned this over time by doing everything else-adding buffer to raise it etc...only to have problems with alkalinity, then calcium, then precipitaion events, magnesium problems etc....With proper water changes, I was able to raise pH with no ill effects, and keeping all related parameters in check.
12 gal is fine as a water change for a 75...
You can leave your alk right where it is, whatever you are doing seems to be working as your numbers are good. Everyone's tank is different, go by what is happening in your tank.
Dont do anything with mag until you test for it. Chances are it will be in line considering your other numbers.