Conductivity for crs

As the above topic, trying to look for info on this.
Many people look at tds on theirs tank but conductivity also important.

Any info appreciate...

conductivity will be 1/2 of the tds. example crs is between 175-225 tds, conductivity will be 87.5- 112.5

Thanks.

Any way, how to lower tds. Mine is currently is 248ppm.

Collected rain water and now filtering it with carbon..hope it will lower my tds.

How envy some can have tds at 150 to 225..mine along very high...

Could it be because for the coral chip..in the sump tank.

[silane]

Originally Posted by eviltrain

conductivity will be 1/2 of the tds. example crs is between 175-225 tds, conductivity will be 87.5- 112.5

I would say TDS = 0.5 x conductivity. But not all manufacturer use the factor 0.5. So it is advisable to use conductivity, it cant go wrong between different manufacturer, brands and its intended purpose of use.

[silane]

Originally Posted by jwkb

Thanks.

Any way, how to lower tds. Mine is currently is 248ppm.

Collected rain water and now filtering it with carbon..hope it will lower my tds.

How envy some can have tds at 150 to 225..mine along very high...

Could it be because for the coral chip..in the sump tank.

our tap water conductivity is about 35 (TDS about 70ppm), by using a lower conductivity water with one that is higher, you will be able to bring down the resultant tank water conductivity

Originally Posted by jwkb

Thanks.

Any way, how to lower tds. Mine is currently is 248ppm.

Collected rain water and now filtering it with carbon..hope it will lower my tds.

How envy some can have tds at 150 to 225..mine along very high...

Could it be because for the coral chip..in the sump tank.

err? why you need to put coral chip in wor?

Originally Posted by silane

I would say TDS = 0.5 x conductivity. But not all manufacturer use the factor 0.5. So it is advisable to use conductivity, it cant go wrong between different manufacturer, brands and its intended purpose of use.

totally agree. but 0.5 is the general conversion. hee hee

Mosura is now selling a tds and conductivity meter. Saw it at GC today and C328 also selling.

Thank for the info..

Hello guys. I'm new to shrimp keeping. Could someone tell me what is conductivity and tds? What are they important for?

Originally Posted by huizhong

Hello guys. I'm new to shrimp keeping. Could someone tell me what is conductivity and tds? What are they important for?

this tds and conductivity is a step higher to my knowledge in CRS,
may i just clarify, the tds required by crs is between 90-120ppm? or what is the range? i read online and people give different range. some even said their crs do well and bred in 250-280ppm.

[bai]

But my direct tap water TDS is 155. I have tried many times is always 155 or 160 for my tap water.