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santorini · 03-09-2008, 07:52 PM

I have a calcium reactor and I replace evaporated water with kalkwasser using a dosing pump. I have been able to maintain a calcium level in the 400s. In fact, once it made it into the 500s. Needless to say, I turned the reactor down!

I also maintained a pH of 8.3 and alkalinity of about 2.8-3.0. They are now 8.6 and 3.4

I can understand that the low calcium could effect my corals. But, why the deaths of the inverts? Could the dying corals poison the water? If so, should I do more aggressive water changes?

Why would the calcium drop so much in the first place? How does Iodine fit into the mix?

And why the algae?

03-09-2008, 07:52 PM	#13 (permalink)
santorini Junior Member Join Date: Mar 2008 Posts: 4	I have a calcium reactor and I replace evaporated water with kalkwasser using a dosing pump. I have been able to maintain a calcium level in the 400s. In fact, once it made it into the 500s. Needless to say, I turned the reactor down! I also maintained a pH of 8.3 and alkalinity of about 2.8-3.0. They are now 8.6 and 3.4 I can understand that the low calcium could effect my corals. But, why the deaths of the inverts? Could the dying corals poison the water? If so, should I do more aggressive water changes? Why would the calcium drop so much in the first place? How does Iodine fit into the mix? And why the algae?