Marine salt mix to raise hardness - The Planted Tank Forum
 
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post #1 of 9 (permalink) Old 01-05-2014, 04:51 PM Thread Starter
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Marine salt mix to raise hardness

I found that a teaspoon of instant ocean marine salt mix raises the TDS of 5 gallons of RO water to about 250 ppm TDS, with a pH around neutral.

My question is, it it safe to use marine salt mix as a GH buffer or is the mineral content too different?

Thanks in advance!
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post #2 of 9 (permalink) Old 01-05-2014, 04:55 PM
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Marine salt mix to raise hardness

I'm surprised it'd register on a tds meter usually it doesn't give a reading... I'd try and get a reading some other way to corroborate this..


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post #3 of 9 (permalink) Old 01-05-2014, 04:59 PM
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In reef salts kh is about 7ēd...
Magnesium is 1200/1500.
Calcium is at 500/600.
Strontium is in there too.. So is iodine.. Are those beneficial to I don't know.. It prob wouldn't be in those strengths either as your diluting it .. Make some and test it for all the things you want .. And put up your findings someone will be able to guide you.. Good luck with your experiment..


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post #4 of 9 (permalink) Old 01-05-2014, 05:33 PM
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So are you just trying to raise your GH?
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post #5 of 9 (permalink) Old 01-05-2014, 07:08 PM
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Quote:
Originally Posted by Blue Falcon View Post
I found that a teaspoon of instant ocean marine salt mix raises the TDS of 5 gallons of RO water to about 250 ppm TDS, with a pH around neutral.

My question is, it it safe to use marine salt mix as a GH buffer or is the mineral content too different?

Thanks in advance!
No it is not safe to use marine salt to increase GH. The mineral content is far different. To increase overall GH use a freshwater GH booster. If you have the right dry fertilizers make your own. The two basics are magnesium (Epsom salt) and a calcium source such as calcium sulfate.
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post #6 of 9 (permalink) Old 01-05-2014, 07:32 PM Thread Starter
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No it is not safe to use marine salt to increase GH. The mineral content is far different. To increase overall GH use a freshwater GH booster. If you have the right dry fertilizers make your own. The two basics are magnesium (Epsom salt) and a calcium source such as calcium sulfate.
So salt mix has too much sodium chloride in relation to magnesium sulfate? Makes sense.

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So are you just trying to raise your GH?
I have plety of ways to raise my GH, including magnesium sulfate, seachem equilibrium, and bee shrimp GH booster. I just like to experiment with different things and though I would ask about the salt mix. I knew the salt mix also had a little sodium bicarbonate in it and it would be cool if it could safely raise KH and GH of RO water at the same time. Knock out two birds with one stone.
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post #7 of 9 (permalink) Old 01-05-2014, 07:36 PM
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I just like to experiment with different things and though I would ask about the salt mix. I knew the salt mix also had a little sodium bicarbonate in it and it would be cool if it could safely raise KH and GH of RO water at the same time. Knock out two birds with one stone.
I'm with you on experimentation and keeping it simple
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post #8 of 9 (permalink) Old 01-05-2014, 08:43 PM
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I never had higher TDS reading using reef crystals instant ocean salt on my reef tank. Reason we used RO/DI is to get 0 TDS, interesting test.
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post #9 of 9 (permalink) Old 01-05-2014, 09:03 PM Thread Starter
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I never had higher TDS reading using reef crystals instant ocean salt on my reef tank. Reason we used RO/DI is to get 0 TDS, interesting test.
Well i was just using RO as a control. Alot of my friends are on spring water coming right out of the mountain and their TDS is around 10-15 straight out of the tap, so I was trying to find a simple solution for them to remineralize their tap water, because I think their water is too soft for most tropical fish.
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