When to retest water

[linz8392]

Just wondering....how long after adding supplememts (ie: for Calcium or Magnesium) would you wait until you retest the water?

A day? A couple hours?

thanks

[Zoaelite]

Depends on your turn over, usually after 30 mins you should be good to retest your parameters.

[reefwars]

would also add its good to test before and after.what are you using for additives??

[linz8392]

i normally dont use additives. i tested my water today with a brand new Seachem kit for Magnesium and Calcium and both are down a bit...

Calcium = around 280

Magnesium = 900

So i added Seachem Magnesion and Seachem Reef Advantage Calcium raiser.

Later on i'll test again and then maybe Monday add again to slowly raise them.

Correct? Or is my thinking wrong?

[reefwars]

Originally Posted by linz8392

i normally dont use additives. i tested my water today with a brand new Seachem kit for Magnesium and Calcium and both are down a bit...

Calcium = around 280

Magnesium = 900

So i added Seachem Magnesion and Seachem Reef Advantage Calcium raiser.

Later on i'll test again and then maybe Monday add again to slowly raise them.

Correct? Or is my thinking wrong?

thats fine, im not familiar with seachem products but your on the right track just be sure to monitor your alk as welll.when dosing calcium(liquid calcium additive right??) make sure to test for alk as one effects the other.and dont dose too much in one dose do it gradually over a few days


do you have corals in your tank?

[linz8392]

I tested Alk last night....

4 meg/L = 11.2 dKH

So according to what i read it's within specs of where it should be.

Yeah that's why im skipping a day to add more additives.

My Calcium additive is a powder that i premix in freshwater then add to the sump.

Why, do you think a liquid Calcium additive is better?