Conductivity levels.

[Rhyno8]

So ive been reading through all the old threads on this subject and looking at amazon conductivity levels which are crazy low. Ive got a blue lab guardian hooked up to my tank and i've noticed my ec seems really low. Im not 100% sure on what measurement the ec represents on the meter if its microsiemens or not. But my tap water is .4 and the tank is .6 on the ec and tds is 280. Just curious incase it was bad long term for fish health.

 

[Coryloach]

You should be able to change it to read in ppm but I am guessing 0.4 and 0.6 is in millisiemens, convert it to microsiemens by multiplying by 1000, so around 400 microsiemens tap and 600 microsiemens tank, so about 200 increase between tap and tank. In TDS that's roughly 256ppm tap and 384ppm tank.
Since the lowest you can go is your tap water, all you can do is enough water changes to bring the levels in the tank back down to near tap water levels because unless you dose fertilisers and/or have rocks that can increase conductivity, the increase is normally due to pollution.

 

[Rhyno8]

You should be able to change it to read in ppm but I am guessing 0.4 and 0.6 is in millisiemens, convert it to microsiemens by multiplying by 1000, so around 400 microsiemens tap and 600 microsiemens tank, so about 200 increase between tap and tank. In TDS that's roughly 256ppm tap and 384ppm tank.
Since the lowest you can go is your tap water, all you can do is enough water changes to bring the levels in the tank back down to near tap water levels because unless you dose fertilisers and/or have rocks that can increase conductivity, the increase is normally due to pollution.

Thanks heaps thats explained it in a nutshell. It does read to ppm. My tap water tds does only read 45 when tested though? So conductivity wise im better off reading it from the ppm?

 

[Coryloach]

Pick one measure, whichever suits you best.

If you are confused, the general rule is that 1 EC in millisiemens=1x1000 microsiemens and
1 microsiemens = 1x0.64 ppm