Whats Your conductivity?

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Whats Your conductivity?

Post by Reef_Logic on October 16th 2010, 11:49 pm

Just like the title says... What do you run your reefs at?
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Re: Whats Your conductivity?

Post by Hero on October 17th 2010, 12:40 am

I'm not sure I understand your question. What do you mean by conductivity?

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Re: Whats Your conductivity?

Post by 4PacNW on October 17th 2010, 4:53 pm

Salinity?
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Re: Whats Your conductivity?

Post by Hero on October 20th 2010, 12:46 am

I tend to think of conductivity as pertaining to electricity. Perhaps something pertaining to temperature?

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Re: Whats Your conductivity?

Post by Brent on October 20th 2010, 3:23 pm

Is he maybe thinking of the wattage that your reefs take up?
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Re: Whats Your conductivity?

Post by Michael Milligan on October 20th 2010, 4:23 pm

My guess is that he speaks of using conductivity as an indirect way of gauging the salinity. I'm sure you are all aware of Specific Gravity (Water = zero) as an indirect method of measurement. The conductivity (ability conduct the flow of electricity) of distilled water is also zero(0). Many dissolved materials will raise the conductivity of the water in proportion to the concentration of dissolved solids/material/salts.

I don't know if dissolved gases have the same effect. I'd guess yes, but it would be too minuscule to warrant any practical consideration. Also, I don't know if temperature have the same equal effect on both conductivity and SG.


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Re: Whats Your conductivity?

Post by Reef_Logic on October 21st 2010, 12:31 pm

exactly!... The temperature of the water should have the same effect o both. If you use a refractometer it will have a SG scale and smaller scale used for conductivity in the range of 0-100. 1.018 is equal to 25. Anyways what do you guys run your displays at?
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Re: Whats Your conductivity?

Post by 4PacNW on October 21st 2010, 7:06 pm

28 ppt: same as the salinity where I collected the things for the tank. Higher temperatures increase solubility thus increasing ion concentration which is proportional to conductivity. However higher temperatures also tend to decrease conductivity, so what its the net difference in conductivity, positive or negative?
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Re: Whats Your conductivity?

Post by Hero on October 22nd 2010, 2:33 am

Glad we clarified this. Of course not having a tank set up at the moment I have no answer to your question.


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