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Those figures look good, as does the TDS, they all have room to increase with time but I would stick with them for now. The TDS is more likely to be the 163 (PPM) but either are fine anyway so I would use the meter/pen one each time! It looks like everything is well from the photos and lots of juvenile shrimp? The light substrate works well with those dark colour shrimps. I assume there are 2 separate tests in the API box, one for KH and another for GH?

Those values are fine, keep it at or close to those targets. It's simpler to everyone to use PPM on the TDS meter. So stick to that when quoting TDS, unless you want to write µS/cm each time you mention microsiemens.

Yes one for GH and one for KH. Thanks for the help and piece of mind it’s extremely appreciated

The test kit just says GH&KH and here’s two picture’s of the little guys

Hey guys HAPPY NEW YEAR to you all. So I’ve done the api gh/kh drops test a few times now to get used to it so after doing it a few times and getting the same results which are KH-6 and GH-11 so I did a 50% water change and I’ve left it overnight and taken new test today and now I have a reading of KH-4 and GH-6 so I get a value of 179 when added but I’m having trouble understanding which reading on my tds meter to use. Example when I use the meter now I get a ppm reading of 163 as in first pic but that’s under my test reading. The meter has another mode and it gives a reading of 326 us/cm see second pic. Crabby mentioned that my value should be higher than my test reading because of other stuff in the water waste ect so I’m now unsure of what I’m doing wrong if I’m looking at the wrong mode on the meter or what. If you know what or have any thoughts/idea’s on what I’m doing wrong I’m all ears. Thanks for your time