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Cesar

DIY Automated Water Quality Monitor and Changing

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Cesar

Ok, so here is an interesting post for those interested in automating your fish room...

https://www.dfrobot.com/blog-733.html

The idea would be to automatically detect water parameters and adjust by triggering water changes from standby R.O. reserves.

Check out the parts list included in the blog post:

+ PH Sensor Meter
+ ORP Sensor Meter
+ Conductivity Meter
+ Temprature Sensor
+ Turbidity Sensor ( Measures particles in the water )
+ Liquid Level Sensor
+ Oxygen Sensor

The ideas are starting to flowing...

Maybe it's not too late to get these parts on the 2017 Aquatic Holiday Wish List!

 

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    • jayc
      It sounds about right for GH6 (6 drops is roughly 120 TDS). Those GH test kits are not the most accurate. And RO water reading of 3 is not unreasonable. I don't know why you would have been reading 240TDS last week and now it's a 100 points lower. I would suggest, not changing water parameter with a water change for a week, then see where it is at. Change if it gets close to 200 (say around 180-190). Let's give the tank some stability by not changing anything for a while.
    • supermansteve32
      I checked my TDS meter and it reads 3 on RO water and today my TDS in my tank is 133. I did a test with API and it took 6 drops so that's around 100 TDS.  I had 2 adolescents die overnight.  Should I only change water when it's over 200 TDS or should i continue with the 10% every week?  Thanks
    • supermansteve32
      I'll check it when I get off work tonight. I'll check my reader against pure RO water & tap, and do a GH test.  I'll also clean my TDS meter.  Thanks for your help everyone. 
    • beanbag
      If u have a GH test kit, then u can do a cross check, where each GH value in RO water made with SS equals about 20 ppm, e.g. GH 6 water will give you about 120 ppm.
    • sdlTBfanUK
      Are you sure the new reading is correct as that sounds unlikely, and I would have thought you would have had shrimps dying  with that sort of decrease. Do you have a second way of checking the TDS, or can you take a sample to a fish shop for them to test? I can't think of any reason that would happen or even heard of that before? Even if you had put pure RO water in last water change it wouldn't have dropped that far! If it is currently the TDS113 it will make adjusting easy as you just mix the water to the desired end TDS figure (140ish) and it will slowly go up to that. Simon
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