karanit Posted Friday at 10:59 AM Share Posted Friday at 10:59 AM I had heard there were only saltwater calcium tests so I was surprised to see these couple for sale saying they're for freshwater/low salinity. Can anyone speak to whether they're accurate or worthwhile? Fluval - https://www.amazon.com/Fluval-Calcium-Aquarium-Freshwater-Saltwater/dp/B092XFXDCC/ref=sr_1_1 Monitor brand - https://www.amazon.com/Monitor-Calcium-Magnesium-Salinity-Tests/dp/B096V9J9JP/ref=sr_1_4_sspa Link to comment Share on other sites More sharing options...
MWilk Posted Friday at 11:49 AM Share Posted Friday at 11:49 AM I use the API calcium test, the instructions have to be modified to make it more accurate. The only reason it’s labeled as a saltwater test is that the accuracy is in 20ppm increments, we don’t have that much calcium in our tanks normally. Both of these tests have the same problem. 2 Link to comment Share on other sites More sharing options...
karanit Posted Friday at 03:58 PM Author Share Posted Friday at 03:58 PM On 9/27/2024 at 7:49 AM, MWilk said: I use the API calcium test, the instructions have to be modified to make it more accurate. The only reason it’s labeled as a saltwater test is that the accuracy is in 20ppm increments, we don’t have that much calcium in our tanks normally. Both of these tests have the same problem. If I'm reading my city's water quality report correctly, I have 100 ppm calcium hardness. In my case then test might actually be useful because I'm in the higher range? 1 Link to comment Share on other sites More sharing options...
MattyM Posted Friday at 05:22 PM Share Posted Friday at 05:22 PM Here's what I've used, I believe got it from one of Irene's Co-op videos: https://www.amazon.com/gp/product/B0002568F4/ 1 Link to comment Share on other sites More sharing options...
MWilk Posted Friday at 11:02 PM Share Posted Friday at 11:02 PM On 9/27/2024 at 10:58 AM, karanit said: If I'm reading my city's water quality report correctly, I have 100 ppm calcium hardness. In my case then test might actually be useful because I'm in the higher range? In that case I would ask, why bother testing it at all? Curiosity? Link to comment Share on other sites More sharing options...
karanit Posted yesterday at 12:15 AM Author Share Posted yesterday at 12:15 AM I am not sure I am reading the report correctly. Link to comment Share on other sites More sharing options...
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