Mag and Epsom Salt

It will probably last awhile. If you post a magensium test on IO, I can tell you how many gallons it will last for approximately. But just to top off water changes it should last a very long time.
 
I just tested a fresh batch of IO at 35 ppt salinity yesterday. Mg level tested at 1260 with a Salifert test kit.
 
You will need about 7.2 ml to raise IO up to 1350.
There are 3785 ml in a gallon
If a 50 lb bag makes about 25 gallons of mix, then that would be about 94625 ml of solution per 50 pound bag.
13142 gallons of IO mix you could raise up.

I think my math is right :) But anyway you look at it, that's ALOT of gallons heh.
 
6 scoops every 2 weeks of esv works for me , no mixing, no math................with the thousands of dollars spent on livestock i could care less about more work to save a few bucks.....................and i still find it hard to believe as someone stated , that a company like esv would just slap their name on something and say , here put this in your tank, without doing some sort of testing and research..........................posted for thought , jmo
 
What would you need to research? I'm sure they either have or consulted a chemist. As long as you have the correct parts, I'm sure they just make huge batches. Test each batch and ship it out. To each their own. I'd rather not waste money. I am not rich so I try to keep as much as I can. Why pay someone 10 times as much when you can do it for cheaper? I don't see how it is much work. Couple scoops of magnesium and epsom salts in a gallon. Shake and not mess with doing that again until you run out. I bet there is more time ordering it online or at your store, taking out the credit card, signing it, saving the receipt then to make it :)
 
Roons, you would think that would be the case but from what I have read on the chemistry forum, Seachem does just that. Seachems magnesium product is little more than just epson salt itself with a high price tag for a little bottle. I am not sure about ESV. They may have better standards....
 
I agree. I don't see why people are advocating to spend 50 times as much for ESV because they think that ESV's products undergo strict testing. Just because a bottle has a brand name label stamped on it doesn't guarantee that it has gone under any stricter testing than anything else. If anything, one thing we know for certain is the analysis of Dead Sea Works ice melt and Epson salts because these products HAVE undergone strict analysis and the results HAVE been published for the public.

I too like to save money in this hobby where I can and making my own DIY magnesium supplement is one way of doing that. When I was using the ESV, a gallon would last me less than a month to up the levels of my water changes. The Dead Sea Works ice melt bag I got sould last me about 3 years. So I could continue to spend $20 per month or $720 over the next 3 years. Or I could spend $50 on a bag of the ice melt and an extra $3 on Epson salts. The $50 bag of ice melt will be good for three years and I will need to get a new container of Epson salts every 4 months. Over 3 years that will cost me $77 over the next 3 years. So let's see, I could pay $77 and use products that HAVE been tested or I can spend $720 to use products that people "think" have undergone strict testing. I think I know what I will continue to do.:) BTW, all of these numbers are "guesstimates" but I think it gets the point across.
 
I completely agree. If you have a smaller tank, then go with the ESV or what not. I'm not bashing those who do buy. To me it's like an oil change. I'm too lazy to do my own. I'd rather pay 3 times as much for someone to do it other then myself. But with my 180, costs go up fast. To raise my magensium up from 1100, I believe it was a whole gallon of ESV. That's like dumping in 20+ dollars just to raise it.
 
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