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High Alk
Ok so in the past couple of days I have been trying to lower my alk to bet. 7-9 but it will not go below 12. I have not dosed any buffers or alk solutions. The parameters in my tank are as follows:
Ph-8.1
Alk-12
Nitrates-40
Nitrites-0
Ammonia-0
Calc.-420-440
Phosphates-?
I use IO and have kalk running in my ato. I have done three 5g water changes one every day for the past three days. I have apprx. 75g total water volume. I really want to get it down so that I can start dosing vodka and lower my nitrates as my tank is heavily stocked(mostly sps) and i feed a ton.
Thanks
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