Pic of my 50 gallon

[Josh23]

Im using a Hagen test kit and for what ever reasion it has always been that low. I once pushed it up to 350 or so using turbo Ca but it just seemed to drop. Im not sure why because I do bi weekly water changes and having really nothing in the tank which would draw large amounts of Ca besides coraline algea


Im going to test my Ca and Alk tomorrow and see exactly where its sits.
If I find that my Ca is still in the 280 zone should I do a 15 to 20 gallon water change to try and bring it back up.

Josh