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PDoug 
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 Topic: Salinity raise from dosing?!!
Posted: September 28 2014 at 10:08pm |
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Okay so I have been at this for a bit off and on. But has anybody ever had their salinity raise rapidly from dosing calc, Alk, and mg like usual? I am wondering if I have a bad mix this go round maybe? I am only dosing Alk and Mag 50ml a day and I have to remove water every two days and put in RO water to bring my Salinity down. This is ranking pretty high up there on my weird crap a'meter and only just occurred when I mixed my last jugs of calcium chloride and Baking soda. any thoughts would be grand
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(307)679-7898 Phillip Douglass 75 Gallon Reef Tank
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Crazy Tarzan
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Posted: September 28 2014 at 10:15pm |
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What are you using to check your salinity with? And have you calibrated it?
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Was that in there yesterday? Casper--WY windier than ?
Down to a 20, soon to double or nothing
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PDoug
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Posted: September 28 2014 at 10:21pm |
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Haven't bought a refractometer yet just using the good old fashioned hydrometer which I tested against a friends refract' to get a more accurate reading
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(307)679-7898 Phillip Douglass 75 Gallon Reef Tank
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bur01014
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Posted: September 28 2014 at 10:58pm |
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Dosing 50 ml of mag per day? Ya that will definitely raise your salinity....it will creep up slowly with normal 2 part, but mag boosts it quite a bit
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Crazy Tarzan
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Posted: September 28 2014 at 11:23pm |
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I've dosed lots of mg before, but I was also trying to push it to 1500-1600 for byropsis. Other than that mg should be much less than Ca and Alk (in my experience). How old is your mg test? What exp date does it have?
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Was that in there yesterday? Casper--WY windier than ?
Down to a 20, soon to double or nothing
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bur01014
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Posted: September 28 2014 at 11:34pm |
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100 ppm addition to magnesium with any brand of additive (except maybe Seachem which may be higher due to their unusual recipe) will add about 0.4 ppt to the salintiy, so 35 ppt to 35.4 ppt, or sg 1.0264 to 1.0267
After all when you are adding magnesium you are adding a salt...
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ReefdUp
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Posted: September 29 2014 at 2:47am |
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+1 to bur... My salinity is always creeping up, and it's a pain. Dr. Randy Holmes Farley has a couple articles on it.
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Mark Peterson
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Posted: September 29 2014 at 6:31am |
 PDoug wrote:
has anybody ever had their salinity raise rapidly from dosing calc, Alk, and mg like usual? |
Rapidly? How many points in how many days?
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PDoug
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Posted: September 29 2014 at 1:41pm |
Please allow me to clarify i add mag once a month I meant calc my bad so as far as the rise its from 33 to 36 or 1.25 to 1.27 every two days. My suspicion is that the prestone I ordered from ebay is old as all get out. 
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Studboyt
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Posted: September 29 2014 at 2:00pm |
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"Prestone" the antifreeze???
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PDoug
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Posted: September 29 2014 at 2:37pm |
Yes I put antifreeze in all my tanks it helps them grow really well  No prestone driveway heat
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(307)679-7898 Phillip Douglass 75 Gallon Reef Tank
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Studboyt
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Posted: September 29 2014 at 3:35pm |
PDoug wrote:
Yes I put antifreeze in all my tanks it helps them grow really well No prestone driveway heat |
That sounds as crazy as antifreeze.
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Crazy Tarzan
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Posted: September 29 2014 at 3:38pm |
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I just started dosing Ca with prestone as well. I'll check and monitor my salinity and see if I have the same results.
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Was that in there yesterday? Casper--WY windier than ?
Down to a 20, soon to double or nothing
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PDoug
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Posted: September 29 2014 at 4:50pm |
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(307)679-7898 Phillip Douglass 75 Gallon Reef Tank
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PDoug
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Posted: September 29 2014 at 4:51pm |
Crazy Tarzan wrote:
I just started dosing Ca with prestone as well. I'll check and monitor my salinity and see if I have the same results.
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let me know what you come up with 
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(307)679-7898 Phillip Douglass 75 Gallon Reef Tank
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Mark Peterson
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Posted: September 29 2014 at 5:31pm |
I cannot imagine adding enough Ca supplement to raise SG by that much without also seeing a phenomenal increase in Ca. Something seems odd here.
What does this supposed "Prestone Driveway Heat" look like, out of the package? Can you post a pic or send it to my phone(808-345-1049) so I can see it? I'm thinking this stuff you bought on ebay is mostly ordinary Sodium Chloride (road salt/water softener salt) for what should actually be only white pearls of pure Calcium Chloride. Is your Alk additive a DIY mixture too? If you don't mind sharing to see if we can help you figure this out, please tell us what are the previous and current Alk and Ca levels and how much of each are you adding, how often?
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PDoug
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Posted: September 29 2014 at 5:52pm |
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Its actual Prestone pearls I am certain of that due to the fact it nearly melted my jug when I mixed. I just worry its picked up to much moisture from storage in a warehouse maybe? I am doing the two part Driveway heat and alk using baking soda (recipe 2) I dose mag with the ep salt mix just as randy states when my jugs are up which has not occurred in roughly a month.I ordered the prestone as winter is still coming but not here.) I dose 50ml a day of Alk and 50 ml a day of mag to keep my levels at 450 calc and 9.3 dkh alk mag is a steady 1390 ( I am debating on testing and possibly skipping next jug
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(307)679-7898 Phillip Douglass 75 Gallon Reef Tank
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PDoug
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Posted: September 29 2014 at 6:08pm |
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sent you a pic mark
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(307)679-7898 Phillip Douglass 75 Gallon Reef Tank
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bur01014
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Posted: September 29 2014 at 6:56pm |
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is there a chance your ato reservoir or your rodi water storage containers in general have become laced with some salt down the road? seems that increase is a little high for how much your dosing....unless your tank is under 30 gallons....
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PDoug
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Posted: September 29 2014 at 7:58pm |
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Maybe just changed the filters will have to take a peak
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(307)679-7898 Phillip Douglass 75 Gallon Reef Tank
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