High Calcium - What should my Alkalinity be??

dedecv3

Member
I have not added any calcium to my tank but it always reads 500-540 PPM. My KH is around 230. Is this a high enough level to go along with my calcium?? PH is 8.2-8.4
 

dedecv3

Member
I am using Coralife salt and it seems several people on here have high calcium when using that brand. I am almost out so I will probably switch to Instant Ocean or Tropic Marin.
 

flavordsm

New Member
Originally Posted by dedecv3
http:///forum/post/3163422
Brand new API test kits. Less than a month old.

I have used the API calcium test kit before and it always showed me having a 375-450ppm in calcium. I thought it was weird because the salt I used wasn't suppose to be a reef salt with calcium in it, however, I didn't have any reason to doubt my readings. Then I got ahold of a Reef Status calcium test kit by Seachem. It was saying I only had around 200ish. I'm thinking API's kits read a little high so this might be the issue.
 

posiden

Active Member
I use the API test kits. In order for you to get a KH of 230.....you would have to add 230 drops of regent to the vial.
I just don't see it.
Oh, and if you read the book that comes with the test kit, you will read that it should be in the 8-12 range. I would redo the test. If you have, then I agree with Bang guy. You have a faulty test. It does happen. Have your LFS double check the test for you.
 

dedecv3

Member
Originally Posted by Posiden
http:///forum/post/3164419
I use the API test kits. In order for you to get a KH of 230.....you would have to add 230 drops of regent to the vial.
I just don't see it.
Oh, and if you read the book that comes with the test kit, you will read that it should be in the 8-12 range. I would redo the test. If you have, then I agree with Bang guy. You have a faulty test. It does happen. Have your LFS double check the test for you.
A reading of 230 is around 13 drops, not 230. Each drop is about 17.5 PPM. 230 dkh would be 230 drops. I bought new test kits and am still getting a KH reading of 230 ppm & a calciium reading of 540 ppm.
 

bang guy

Moderator
As long as it stays balanced I can't think of any downside of those levels. Usually it's very difficult to maintain those parameter levels but it's not impossible (obviously).
Is your Salinity really high also?
 

dedecv3

Member
Originally Posted by Bang Guy
http:///forum/post/3165591
As long as it stays balanced I can't think of any downside of those levels. Usually it's very difficult to maintain those parameter levels but it's not impossible (obviously).
Is your Salinity really high also?
Nope, a litt low. SG is 1.022
 

posiden

Active Member
Originally Posted by dedecv3
http:///forum/post/3165568
A reading of 230 is around 13 drops, not 230. Each drop is about 17.5 PPM. 230 dkh would be 230 drops. I bought new test kits and am still getting a KH reading of 230 ppm & a calciium reading of 540 ppm.
I did catch that. Sorry. I always use the degrees. It's eaiser that way. If you are going to take the time to multiply your degrees to get ppm. You should do it by the real factor of 17.9.
What is in your tank?
Do you have any corals to put a demand on your alk and calcium?
I believe, if your gravity is low, then increasing it is going to increase your readings. What are you using for water? RO/DI?
What are you using to measure your gravity with?
 
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