API Calcium Test Directions

[Deleted User 6]

Request: Can someone provide to me the directions for the API Calcium test? I lost the direction in the move. Thanks!

[dangeroo2]

fill vial to white line.

add 10 drops of solution #1, cap vial and shake for 10 seconds.

shake solution# 2 vigorously for 10 seconds.

add solution # 2 drop by drop until solution changes from pink to blue.

each drop is equiv. of 20 ppm of Ca

 

cap and shake vial in between drops!

[Deleted User 6]

fill vial to white line.

add 10 drops of solution #1, cap vial and shake for 10 seconds.

shake solution# 2 vigorously for 10 seconds.

add solution # 2 drop by drop until solution changes from pink to blue.

each drop is equiv. of 20 ppm of Ca

 

cap and shake vial in between drops!

 

Perfect!! Thanks!

[dangeroo2]

you got it! just remember it will turn from a pink to a purplish before hitting the blue end color

[egloskerry]

And add about 15 drops of bottle 2 before you actually start shaking, because it shouldn't change before then unless it's really, really low.

[skydive]

If you lose them again Marine Depot has them under "details"

[The Propagator]

And.... be sure to check it AWAY from your aquarium lighting ( IE only check the result sunder normal house lighting ) let it sit for a few seconds before adding more after it has turned a darker shade of purple.

It will change from dark purple to blue just form allowing it to sit a few seconds while inverting the vial back and forth most of the time. That will give you a more accurate reading IMHO.