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Step 1
Go to a pet store that sells fish supplies. If you have a saltwater tank, make sure the store sells supplies for marine tanks. Some stores that do not sell saltwater fish carry marine fish supplies.
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Step 2
Look at the different kits available to see what meets your needs. Many kits come with 4 basic tests for ammoninia, nitrite, nitrate, and pH levels. Freshwater test kits will display the high and low pH, where as for saltwater will only note high pH levels.
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Step 3
Look at other, individual test kits that are not available in a pack. These include testing for copper, GH and KH levels. These test kits are more specialized according to where you live and the water you receive in your home.








