I have the guys at my LFS stumped... and they're usually pretty smart.
Green hair algea appeared in my 125 reef tank. We found the alk was as little low, about 3, and cal was way high, around 700. I was dripping Kalk with an automatic topping system and supplimenting with a 2-part system.
So I stopped kalk and topped with fresh RO. I stopped the Cal part of the the parter and increased the Alk part. A week later the cal was coming down but the Alk was coming down too so I started up the Kalk again. Two weeks later now and the Cal is at 400 and the Alk is 2.5. I started up the Cal part again.
But we can't figure out why the Alk is going down instead of up. One guy thought that my skimmer may be removing the carbonates. But the other two guys said that wouldn't be the case. They suggested that I increase the Alk suppliment even more and come back in for another test next week.
Any thoughts on what's going on here?
Green hair algea appeared in my 125 reef tank. We found the alk was as little low, about 3, and cal was way high, around 700. I was dripping Kalk with an automatic topping system and supplimenting with a 2-part system.
So I stopped kalk and topped with fresh RO. I stopped the Cal part of the the parter and increased the Alk part. A week later the cal was coming down but the Alk was coming down too so I started up the Kalk again. Two weeks later now and the Cal is at 400 and the Alk is 2.5. I started up the Cal part again.
But we can't figure out why the Alk is going down instead of up. One guy thought that my skimmer may be removing the carbonates. But the other two guys said that wouldn't be the case. They suggested that I increase the Alk suppliment even more and come back in for another test next week.
Any thoughts on what's going on here?