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  #1  
Old 10-09-2019, 01:17 PM
Zoonder's Avatar
Zoonder Zoonder ¥Ø«eÂ÷½u
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Join Date: May 2018
Location: Israel
Posts: 19
Default Help! Stupid move makes ph skyrocket to 8.7

I’m ashamed to say that I’ve neglected my tank.
I have a pretty well stocked Sps dominant tank.
A red sea peninsula 650 running
Total water volume around 700L
Live rock, aragonite sand,
Zeovit reactor running at 700lph filled with 1 and three quarters zeolite media,
KZ skimmer, cor20 pump,3 apex wav pumps
2 dos pumps:
Dos#1-
First pumphead - zeostart3-1.7ml daily
second pumphead reserved for mg supplement
Dos#2 currently not in use
First pumphead - esv alkalinty
second pumphead -esv calcium
Sg is 1.0255

My ca (474)and mg (1420)were off so I stoped the pump and buffered dkh using sodium bicarbonate
I didn’t test for 2 weeks and today briefly checked dkh before leaving the house dkh was 5.4 so I decided to buffer but this time used red seas dkh liquid buffer dosing is 1 ml per 100 l =0.1 dkh
I add 110ml at once and left.
My apex is showing a ph of 8.7-8.6
What should I expect ? How can I fix ?
Thank you !
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  #2  
Old 10-09-2019, 06:46 PM
jacky jacky ¥Ø«eÂ÷½u
ZEOhead
 
Join Date: May 2018
Location: Asia
Posts: 2,101
Default

A little thought, Ph 8.6~8.7 is acceptable. Red sea dkh liquid and PH carbon rod, the distance between the two is similar?
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  #3  
Old 10-10-2019, 02:13 AM
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G.Alexander G.Alexander ¥Ø«eÂ÷½u
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Join Date: Jan 2005
Posts: 35,931
Default

Not much you can do, it will come down slowly again, quick changes are always a problem so let it come down by itself.

To bring back the balance I would do 2 or 3 additional smaller (10%) water changes within a week

G.Alexander
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  #4  
Old 10-10-2019, 04:54 AM
Zoonder's Avatar
Zoonder Zoonder ¥Ø«eÂ÷½u
Zeohead wannabe
 
Join Date: May 2018
Location: Israel
Posts: 19
Default

Thank you !
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