2 different results for calcium

[odellous]

now i dont know what to do! all w/parameters are within range. i used 'instant ocean' to test calcium levels and the results were 435. acceptable range, right? 'tropic marin' has a 2 part test for mag and calcium, while using that test it showed my calcium levels were 488. too high. i dont know which test is more accurate. however, i did notice one of my emerald crabs were no longer emerald, but white. possibly from the calcium. any suggestions that wont require a 3rd test kit?

[crvz]

488 isnt high enough to cause any problems. Many folks run their tanks with numbers in the 500s without detriment to any inhabitants.

[quader94]

did you clean everything before testing them?