ALKALINITY needs your help.

[Genvid]

I have RedSea Reefer 350 75gal. LPS tank, 2 years old system, the last two months alkalinity has been rising on its own, without dosing. I have a three-component dosage. Parameters CA-420, MG-1420, PH-8. NO3 10-25. PO4-0.1 alkalinity was always 8.3-8.6, but the last two months it began to rise to 11.6. I started changing the water Tropic Marin, they brought it down to 9.6, but then again to 11. I add KZ LPS 4 mg, KZ coral buster 4 mg, KZ flatwormstop, KZ meerwasser complex every day, all 4 mg. I read threads about increasing kh and the effects of nitrates, tried almost everything, nothing helped, also about the effects of sand. I gradually changed the sand, I don't know what to do anymore, the corals seem to be doing fine. I haven't lost anyone yet.

 

[rtparty]

You are dosing a 3 part? Did I read that right?

 

[Genvid]

You are dosing a 3 part? Did I read that right?

yes ca, mg, kh, ESV, but I haven’t dosed the alkalinity for 2 months now, after it started to rise.

 

[Randy Holmes-Farley Verified Community Expert]

How are you measuring alk?

You certain you stopped the correct one?

 

[Genvid]

How are you measuring alk?

You certain you stopped the correct one?

Thank you very much for your participation, I measure Hanna and Trident, give the same results, then I triple checked at my reef shop.

 

[Aaron75]

How often do you do water changes? What's the Alk of your fresh mixed water?

 

[Genvid]

How often do you do water changes? What's the Alk of your fresh mixed water?

I change 20% every week, kh of new water 8. I have a seven-stage rodi system, all filters are new, resins too.