Mg++ Dilution Problem

lakee911 · 10/26/2007, 08:13 PM

So, I started with 990ppm Mg++ in my 120Gal tank. I added 12.0 fl. oz of a (4 cups Mag Flake in .5Gal DI-water) solution. This raised my Mg++ by 150ppm to 1140ppm. Now, assuming this new sample was throughly mixed, how many ppm of Mg++ do I have per oz. of sol'n?

150ppm/12oz = 12.5ppm/oz or does the 120G need to factor in?

Thanks,
Jason

45commando · 10/26/2007, 08:39 PM

I think if you're trying to calc how many PPM of mag is in your actual additive solution,then you need to see how much mag is in each cup of your mag flake(should be in a break down label on container).Then I think just divide total amount of mag by amount of added water ie: .5 gallon-to give your solution strength.The volume of the 120 shouldn't factor in.HTH

bertoni · 10/26/2007, 11:12 PM

For your tank, 1 fl oz is raising Mg by 12.5 ppm. If you were to add more live rock or more sand, the change from 1 fl oz of supplement would rise. For the moment, I wouldn't worry about it, but I would limit the dose to 100 ppm per day.

lakee911 · 10/27/2007, 07:40 AM

Well, I was just curious as to the strength of this stuff. I didn't mean to raise it so much, but I think it actually just wasn't mixed well.

Thx
Jason

10/26/2007, 08:13 PM	#1
lakee911 Registered Member Join Date: Dec 2005 Location: Columbus, OH Posts: 2,010	Mg++ Dilution Problem So, I started with 990ppm Mg++ in my 120Gal tank. I added 12.0 fl. oz of a (4 cups Mag Flake in .5Gal DI-water) solution. This raised my Mg++ by 150ppm to 1140ppm. Now, assuming this new sample was throughly mixed, how many ppm of Mg++ do I have per oz. of sol'n? 150ppm/12oz = 12.5ppm/oz or does the 120G need to factor in? Thanks, Jason

10/26/2007, 08:39 PM	#2
45commando Registered Member Join Date: Aug 2004 Location: Fort Lauderdale,Fl Posts: 1,252	I think if you're trying to calc how many PPM of mag is in your actual additive solution,then you need to see how much mag is in each cup of your mag flake(should be in a break down label on container).Then I think just divide total amount of mag by amount of added water ie: .5 gallon-to give your solution strength.The volume of the 120 shouldn't factor in.HTH __________________ "It's not the size of the dog in the fight;It's the size of the fight in the dog!" -Sir Winston Churchill. Current Tank Info: 120G,40g sump,10g fuge.2x250watt XM 10K & 330watt VHO actinic

10/26/2007, 11:12 PM	#3
bertoni RC Mod Join Date: Mar 2002 Location: Mountain View, CA, USA Posts: 68,814	For your tank, 1 fl oz is raising Mg by 12.5 ppm. If you were to add more live rock or more sand, the change from 1 fl oz of supplement would rise. For the moment, I wouldn't worry about it, but I would limit the dose to 100 ppm per day. __________________ Jonathan Bertoni

10/27/2007, 07:40 AM	#4
lakee911 Registered Member Join Date: Dec 2005 Location: Columbus, OH Posts: 2,010	Well, I was just curious as to the strength of this stuff. I didn't mean to raise it so much, but I think it actually just wasn't mixed well. Thx Jason