problems anyone?

[karsseboom]

Since i just started buying a few small frags im checking my alk, mag, cal daily. When i frist started testing my mag was 1100 and alk was a little on the low side. So i added some more mag to the tank and it didnt raise it much so i added some alk. Then i checked my mag this afternoon and it went up to the higher levels, then i checked my mag and it went down to about 900??? can anyone help me out on what i did wrong, my cal has always been around 500. I new at keeping sps so im trying very hard.

 

[collie man]

magnesium and alkalinity compete for space in the aquarium. when you add more magnesium you are taking up space that alkalinity would take up. if you have a high alkalinity you will more likely then not have a low magnesium. hope that helps.

Jeremy K.

 

[James404]

Mag shouldn't fluctuate that quickly, perhaps there was testing errors? It does take quite a bit of the mag chloride/sulfate solution to raise it. I would retest with a good kit and increase by no more than 100ppm a day.

 

[Brian Chong]

http://reef.diesyst.com/chemcalc/chemcalc.html
mag takes a lot more to raise but at the same time diminishes slower than alk and cal.
start slow. have you test several times at once? maybe user error?

 

[dvanacker]

magnesium and alkalinity compete for space in the aquarium. when you add more magnesium you are taking up space that alkalinity would take up. if you have a high alkalinity you will more likely then not have a low magnesium. hope that helps.

Jeremy K.

Thats a new one to me...:hmm3:

 

[karsseboom]

the mag test im using is elos.