LPS corals alk needed?

[charbel101]

My alk is 7.4, and everytime i get an LPS coral, duncan or what else. They end up in same situation. They closed up their tentacles and thats it. Im just wondering if thats because of my alk. My lfs said for lps corals alk needed is 8.5 and not low 7s. I use tropic marin.

Mag:1315
Calc:415
Phosphate: 0.04
Nitrate:10
Salinity: 1.025.
Alk:7.5

Thats how my LPS look after a month of having it weird af

 

[Eric Cohen]

Alk in the 8's to 9's is often the goal. Stability more important with ALK......that's why we have these new alkalinity meters and dosers so they can test multiple times per day and dose regularly to keep alk stable.

 

[charbel101]

Alk in the 8's to 9's is often the goal. Stability more important with ALK......that's why we have these new alkalinity meters and dosers so they can test multiple times per day and dose regularly to keep alk stable.

Wait what new alk meters?

 

[dwest]

Mid 7’s is fine. Stability most important. Do 10% weekly water changes and give them some time.

 

[Lbrdsoxfan]

You asked about alk before, if your bent on higher alk # either dose or switch to a higher alk salt.

I'm old school, so I'd go with the higher value salt and dose only when the alk consumption demands it.