High Calcium problems

[rinderb175]

I’ve been reefing for 2 years and finally bought some Hanna testers. I’m using Reef Crystals and mixing it to 1.026 which should yield 455 ppm calcium. Out of curiosity I used my Hanna tester on a new batch of saltwater and it showed the calcium level at 515ppm @ 1.026. I don’t believe it was user error on the tester. I tested it 3 times and my results were 510/515/520. I’m trying to keep my tank at 440ppm. Does anyone have any suggestions? Should I just dose more soda ash until my calcium levels come down? My current dkh is 8.

 

[MERKEY]

Hoe long did you let the salt water mix for before testing?

Some mixes say to wait a certain period of time before use.

Did you stir the dry salt ? I always mix up the dry before making fresh salt water.

There is also room for variance with the levels In each different brand.

I'm not sure what each manufacturer's % of acceptance is but the number won't match perfectly every time.

 

[Randy Holmes-Farley Verified Community Expert]

Those values are fine. They may nor may not be accurate, but there is no reason to be concerned about them. I recommend 400-550 ppm calcium.

 

[rinderb175]

Hoe long did you let the salt water mix for before testing?

Some mixes say to wait a certain period of time before use.

Did you stir the dry salt ? I always mix up the dry before making fresh salt water.

There is also room for variance with the levels In each different brand.

I'm not sure what each manufacturer's % of acceptance is but the number won't match perfectly every time.

I mixed it and waited about 18 hours.