Low Kh and calcium in reef tank

[Tangina20]

I just got test kits for these two things and it says my calcium is 340 and kh is 17.9ppm or 1dkh with api test kits. What should I do to get these levels up??? I also don’t understand the difference between all, dkh, and kh.

 

[saltyfilmfolks]

Do some large water changes.

You could also look into dosing as you become more familiar.


https://www.reef2reef.com/threads/randys-reef-chemistry-articles.174821/

http://reefkeeping.com/issues/2007-03/rhf/index.php

 

[EmdeReef]

Sounds like a testing error at least for alkalinity.

 

[Tangina20]

Sounds like a testing error at least for alkalinity.

I’m going to try alk again and see what I get.

 

[eggplantparrot]

1 dkh?? Did you add salt to the water LOL

 

[Tangina20]

1 dkh?? Did you add salt to the water LOL

I misread the directions I was so confused lol! I got 7dkh which seems more right, isn’t it still on the low end?

 

[EmdeReef]

I misread the directions I was so confused lol! I got 7dkh which seems more right, isn’t it still on the low end?

7 is fine and even in line with NSW.

 

[Hitman]

I wouldn't recommend a single change until you retested with a quality test kit. API tests are really only good for cycling your tank after that they are no where near accurate. For accuracy and cost I would recommend you get Salifert or Red Sea kits. I've seen to many people use API and crash their tank due to poor test accuracy. If budget allows I would recommend Hanna for PO4, and Alk, and Salifert for MG, and Ca.

 

[Tangina20]

I wouldn't recommend a single change until you retested with a quality test kit. API tests are really only good for cycling your tank after that they are no where near accurate. For accuracy and cost I would recommend you get Salifert or Red Sea kits. I've seen to many people use API and crash their tank due to poor test accuracy. If budget allows I would recommend Hanna for PO4, and Alk, and Salifert for MG, and Ca.

I will look in to it thank you!