plancton
Active member
Some weird phenomenon just happened in my tank. The calcium and alkalinity levels were being kept very stable under my dosing regime, then 2 months ago even with a little bit more corals added and the same supplement dosing, the levels started to go up very quickly.
Example, throughout the year the levels were:
alk: 9 dkh
calcium: 450 mg/l
and 2 months from now, the levels increased:
alk: 14 dkh
calcium: 600 mg/l
I thought perhaps the test kit was failing, but I went to my LFS to double check, and the readings were correct.
I use T5s and they are 10 months old now.
So I'm blaming the lights, although I remember that I haven't changed the osmosis filters for a while now.
Example, throughout the year the levels were:
alk: 9 dkh
calcium: 450 mg/l
and 2 months from now, the levels increased:
alk: 14 dkh
calcium: 600 mg/l
I thought perhaps the test kit was failing, but I went to my LFS to double check, and the readings were correct.
I use T5s and they are 10 months old now.
So I'm blaming the lights, although I remember that I haven't changed the osmosis filters for a while now.