Question about the Red Sea Mg Test Lab

[bradeastondotcom]

Hey guys,

 

I just got the Red Sea Mg test lab, and I'm having a problem when I get to step 8.

The instructions say add 0.4 ml of reagent C, then continue adding reagent C mixing every 2 seconds till the test tube turns blue/end color.

 

So my question is, do I count the 0.4 ml of Reagent C that added in the first part of step 8, with the drop by drop adding of Reagent C ? Or am I counting just the drops after adding the 0.4 of reagent C ?

 

This is what I'm getting for the Mg test:

6.5 ml of Reagent C.

I add the total ml of Reagent C. (this is including the 0.4 ml at the first part of step 8)

 

And I'm pretty sure it is really low, cause I do weekly water changes with Crystal Sea.

Which I am starting to read has an extremely low Mg levels.

 

Thanks for the Help guys, just want to make sure I don't add too much Mg.

[disaster999]

red sea mg test is crap and not accurate at all. i compared it to the elos test kit and it is off by a lot. i would get the salifert or elos kits as they are more accurate

 

but to answer your questions, they just want you to add 0.4ml of reagent C first, then from then on add the rest of the reagent c in drops until color change and record the amount of reagent added.

 

it would take too long to add the whole 1ml of reagent C in drops. and if it did change color after 0.4ml, usually means mg is too low.

 

i would either get another more accurate test kit or see if a local reefer have another mg test kit they could test your water with.

[bradeastondotcom]

Thanks for the reply.

 

They were out of the salifert at the lfs, which is what i always use.

So I got this one for the mean time.

 

I added a .25 ml over/after the initial dose of 0.4 ml

which means if im reading this correctly

I take my .25 ml x 2000=500.

 

Sorry just wanna make sure before i start dosing it. Can't be too careful in this hobby.

[disaster999]

nono, you include the .4ml which brings it to .65mlx2000 which is around 1300ppm

[bradeastondotcom]

Ya I got it when i checked the Mg of some newly mixed water and found it was the same.

And when I found this:

http://www.nano-reef.com/forums/index.php?...=166621&hl=

 

I re-read what you said and figured it out, duh.

hahah

 

No worries I didn't add anything.

Thanks for the help.

brad

[bdare]

Waste of money. Throw them in the garbage IMMEDIATELY.

[The Propagator]

HE SAID GARBAGE DAMN IT !!!

NOW !!!!