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Old 01-23-2008, 07:44 AM   #1
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Help! Hydrometer Readings.

I did a water change and a couple days later I loss my two clown fish. Checked the PH which had spiked. But ammonia was fine as well as the other peramiters. I took a hydrometer reading and it went off the chart. Went to do another and the hydrometer fell appart. Bought a new one ... it too went off the chart. Did another water change and several hydrometer readings.

When I did my intial water change I measured and got readings just below 32/1.024 both in the pail and the tank. With the new hydrometer I have gotten innacurate readings ... varying results ... but this morning it seems to of crept up to 1.032. I will return the new hydrometer this morning.

Is the salinity increassing and if so how? Water is clear. What would cause this. Temp is 79.6
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Old 01-23-2008, 08:21 AM   #2
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Invest in a refractometer http://www.premiumaquatics.com/Merchant2/merchant.mvc?Screen=PROD&Product_Code=REFRACT-PA&Category_Code=Hydrometer
These are a must in salt water the hydrometers are to easy to go off calibration . Try rinsing in vineigar and rinsing with distilled water . Just a little air bubble on the swing arm can cause a misreading .
How are you topping off ?
When you have evaporation it is just the H20 that evaporates if you top off with salt it will cause it to go high .
Also PH will change and increase with the lighting cycle . How old is the tank?
Since your water change water is high I would suggest getting ahold of a refracometer as you will need to add water to lower it . Is there any thing else in the tank right now or is it empty but for some LR and LS ?
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Old 01-23-2008, 10:28 AM   #3
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I agree with Sadie, my hydros were pretty far off. If you are adding SW top-off water, that will definitely in crease your salinity. Also, if you are using different brands/types of hyrdometers, that could could give you different results.
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Old 01-23-2008, 11:14 AM   #4
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I thought for a while my SG was fine. Come to realize after I invested in a refractometer my Salt level was off, The hydromoter said 1.023 and the real salt level was more like 1.028 checked with a refractometer 5points off. The Refractometer is the best investment you will ever make in this hobby.
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Old 01-23-2008, 11:39 AM   #5
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http://www.marinedepot.com/ps_search...racto&parsed=1

Not that expensive - especially considering the headaches you're going thru.
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Old 01-23-2008, 12:53 PM   #6
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Ebay, picked one up for under 30$ shipped. They are now 40$ shipped. made ithere in great time w/ tracking.

Where I purchased it from with no problems
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Old 01-23-2008, 03:31 PM   #7
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Refractometer, Refractometer, Refractometer...Cant say it enough. Hydrometer's are the pits!!!
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Old 01-23-2008, 06:49 PM   #8
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Luving my refractometer
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Old 01-23-2008, 06:56 PM   #9
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I see this one is on sale at the good Dr.s:

http://www.drsfostersmith.com/Produc...fm?pcatid=9957

Doesn't seem like it costs that much, but I have no experience with it.
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Old 01-23-2008, 07:03 PM   #10
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Quote:
Originally Posted by Sadielynn View Post
How are you topping off ?
When you have evaporation it is just the H20 that evaporates if you top off with salt it will cause it to go high .
I want to repeat this question.
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