emorrison33
Aquarium Advice Activist
My tank just finished cycling the other day..yhooWhoo!! But anyway, I have noticed a steady decline in my calcium levels. It's now day 17 in my 20 gallon...I used live sand to help cycling. I started using a damsel for cycling, but was told not to use fish, it was old school...so I took him back and bought a piece of shrimp. On 12/26 I started to test for calcium. It was 440 mg/L. Since then it has dropped and today was 260 mg/L. All I have is live rock......Why ??????