Is my cal and mag too high???

[jayteerq]

I’m worried about my parameters. My corals look okay but I don’t notice thriving and growth. Some days they’ll look plump and full and have an extra polyp or two. Then the next day they’ll be shrunken in and small. My alk is stable with a fluctuation of maybe .3 per week so I’m happy with that . But my cal and mag have been insanely high since day one. Can that negatively affect my corals? Cal hovers around 520 and mag around 1460 which I believe to be out the norm and too high. I’m dosing 10mL of AFR and 500mL of Kalk. Should I slow my kalk dose down since it can also affect my Cal levels? I’m just afraid to ruin my Alk stability.

Any advice is much appreciated. Thank you.

PS. The random spike in the graph is me recalibrating my trident

 

[taricha]

if Ca and Mg are both high, my first suspect would be that overall salinity is too high.
How do you measure salinity? Is it possible it's creeped up a little high?

 

[jayteerq]

if Ca and Mg are both high, my first suspect would be that overall salinity is too high.
How do you measure salinity? Is it possible it's creeped up a little high?

I’m at 1,025 salinity. I measure using a Hanna checker and have recalibrated the checker last week

 

[Lavey29]

Cal slightly elevated. Mag is fine

 

[vetteguy53081]

I’m worried about my parameters. My corals look okay but I don’t notice thriving and growth. Some days they’ll look plump and full and have an extra polyp or two. Then the next day they’ll be shrunken in and small. My alk is stable with a fluctuation of maybe .3 per week so I’m happy with that . But my cal and mag have been insanely high since day one. Can that negatively affect my corals? Cal hovers around 520 and mag around 1460 which I believe to be out the norm and too high. I’m dosing 10mL of AFR and 500mL of Kalk. Should I slow my kalk dose down since it can also affect my Cal levels? I’m just afraid to ruin my Alk stability.

Any advice is much appreciated. Thank you.

PS. The random spike in the graph is me recalibrating my trident

I see you are using numbers via fusion reading. Be sure to manually test to assure no error with a reliable test kit or have LFS do it for you

 

[jayteerq]

I see you are using numbers via fusion reading. Be sure to manually test to assure no error with a reliable test kit or have LFS do it for you

Yea I just recalibrated the trident with Hanna test results

 

[Randy Holmes-Farley Verified Community Expert]

I recommend 400-550 ppm for calcium, so I would not be concerned at 510 ppm.

Long term, kalk very slowly boosts calcium.

 

[fishguy242]

I recommend 400-550 ppm for calcium, so I would not be concerned at 510 ppm.

Long term, kalk very slowly boosts calcium.

Would unbaked baking soda do the same over time ? 250+ gallon system , no water changes almost 5 years
have noticed using less calcium over last couple yrs ?

 

[Randy Holmes-Farley Verified Community Expert]

If you use any alk only supplement, you can help calcium to decline (if that is desired). I don’t think it matters in this case.