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jays333
09/11/2010, 06:25 PM
I starting adding Kent Tech M to my tank deal with a Bryopsis outbreak. My Salifert Mag Test kit only goes to 1500 PPM. Does any one know how to alter the kit to read higher levels?

HighlandReefer
09/11/2010, 06:27 PM
After you empty the first syringe, you need to fill it up again and continue titrating until the color change. Then add the two together to get your final reading. ;)

jays333
09/11/2010, 07:02 PM
Thank you. Makes perfect sense.

HighlandReefer
09/12/2010, 07:54 AM
Your welcome. ;)

wcharon
11/18/2010, 02:49 PM
Can somebody tell me what is the high reading and how you get there if i filled the syringe 3 times (0.00) full when it changed color??

bertoni
11/18/2010, 06:32 PM
Umm, one full syringe is equal to 1500 ppm. I wouldn't trust the reading if it took 3 syringes to change color. How fast was the titration?

wtac
11/18/2010, 06:50 PM
How about diluting your test sample to save on reagent #3? If you are going through 3 syringes, try a 1/4 dilution. Add 2mL system water to 6mL RO/DI in a clean vial or what have you. Mix well and test as per instructions. Whatever the result is, multiply by 4.

HTH/JM2C

zachfishman
11/19/2010, 08:54 AM
Is there a level of Mg that becomes detrimental? I just ordered some Tech-M to supplement my 29, and was thinking of bringing the mag up a little to see if it helps curb my GHA.

wcharon
11/19/2010, 01:45 PM
Thanks for the suggestions.. I was also thinking that probablly the test kit is bad so will try with another one just to be sure before continue to add TechM.

bertoni
11/19/2010, 02:32 PM
Magnesium probably becomes toxic at some point, but we don't know exactly where. I wouldn't go much over 1500 ppm, personally.

I think getting a second opinion on the test kit is a very good idea. Something doesn't seem right there.

MaLi
11/20/2010, 06:21 AM
Can somebody tell me what is the high reading and how you get there if i filled the syringe 3 times (0.00) full when it changed color??

If indeed the level of Mg is that high (I don't believe it though) your inverts should be dead by now, and your coral in process of. Inverts, they cope not so well with high level of Mg. (personal experience)

hope it helps,
Marian