odd chemical usage

[jason.kennedy.98478]

so anyone else have a tank that uses like no calcium and just uses alk and Mg?

 

[wkscott]

Nope. Just you.


You probably have a problem with your tezt kit (s).

 

[jason.kennedy.98478]

thats what i thought too, until i bought new ones and they came up with the same results

 

[wkscott]

Do you have any hard corals or coraline algae growing in your tank?
They have to be using calcium. Are you doing large water changes where the salt contains extra amounts of calcium?

 

[jason.kennedy.98478]

have the following corals: 7 zoa "colonies". 5 LPS, 4 SPS, and the coraline is growing. its a 10 gallon tank and i change like 2 gallons a month or so

 

[wkscott]

According to your own chart your alkalinity and calcium are both being used up. Your salt mix clearly has enhanced amounts of elements because you did a water change on the 15th and your alkalinity, calcium and magnesium all increased.
Be careful with your salt mix, it appears to have a very high alkalinity level. Are you by chance using Reef Crystals?

The 4 SPS frags that you have should actually be using very little alkalinity, calcium or magnesium.

 

[jason.kennedy.98478]

Red sea pro salt