Calcium figuring without test...

[coleclyatt]

I have a question that cant wait until morning. I do not have a calcium test. my ph is 8.7. my alkalinity is 15 dkh. I need to do something tonight both of large corals have curled up and look sick. I dont want to add anything until i know what. I do add kent's liquid calcium 3 times a week as recommeded. thanks!

[ohioreef]

IMO, you shouldn't add anything that you can't test for.

I have never heard of any way to determine Ca level w/o a test kit.

[Blown 346]

I would do a water change and try to get that PH and the alkalinity down. Also if you dose calcium 3 times a week depending on how many corals you have those levels might be too high also.