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Old 08-24-2010, 09:33 PM   #1
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Can I use my freshwater test kit for saltwater?

I have the Aquarium Pharmaceuticals Freshwater Master Test kit. I notice there is a saltwater one as well, but they test for the exact same things. Can I use it for my saltwater tank? (it a new 3gal nano reef) I know there are other test kits I must buy for saltwater but as far as nitrates, nitrites, ammonia, I was just curious if I need to buy another one or not.

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Old 08-24-2010, 11:44 PM   #2
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For API, I know for sure that the ammonia and nitrite test kits are the same for freshwater and saltwater. For ammonia, you have to use a different color chart for saltwater vs. freshwater - but the chemicals are the same. For nitrites, the color chart is the same for both freshwater and saltwater.

For nitrates, I *think* it's the same kit, but different color charts. But it's been a while since I used that brand for nitrates.

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Old 08-25-2010, 10:37 AM   #3
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As long as you have the cards for SW, all the tests can be used.
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Old 08-25-2010, 10:43 AM   #4
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I agree the chemicals are the same but the salt will vary the colours in the chart so you need salt cards to use it,
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