How a red develops?

[vic]

Originally Posted by Julius

Only salt build up the TDS, others: BW, CD, VIT no effect to TDS .......

heres another site for u to read....

http://hjem.get2net.dk/Best_of_the_W...l#Introduction

Originally Posted by kagemaru

Bro Julius,

from wat I understand some Indonesian frenz does make use of the water conductivity to a great extent to determine whether their water is suitable for reds...

This portion I have yet to explore and due to the lack of the TDS meter for measurement sometimes its not easy to justify its importance...

maybe u can pm me on this in more details as there are many interesting facts on this...otherwise this thread becomes too technical

IMO the conductivity is more important for breeding purpose if just for hobbyst keeping not so much effect. But I do find that salt is widely used in aro, salt content is directly related conductivity. The best is to know the cond. of original habitat of aro.

If you have a Conductivity meter, you can use it to measure the TDS, 1 us/cm conductivity = approx. 0.5 ppm TDS, see the pic of my testers, only cost about US$ 25/pc, quite reliable. It is a good tool for me to know exactly the salt content in my tank.

Originally Posted by Julius

IMO the conductivity is more important for breeding purpose if just for hobbyst keeping not so much effect. But I do find that salt is widely used in aro, salt content is directly related conductivity. The best is to know the cond. of original habitat of aro.

If you have a Conductivity meter, you can use it to measure the TDS, 1 us/cm conductivity = approx. 0.5 ppm TDS, see the pic of my testers, only cost about US$ 25/pc, quite reliable. It is a good tool for me to know exactly the salt content in my tank.

thks Julius...any idea where in Jkt to get one?...I will always be there for business...should be there this mid oct again

hope we could meet up sometime...

Originally Posted by vic

Alamak...hope I dun have to go into detail explaining all these terms.

TDS is as explained above...inorganic solids as well as organic dissolved in the water are all consider TDS...e.g food u feed, shit by aro, vitamins u add...etc etc. They have another term for organic dissolved...its call DOC...Dissolved Organic Content.

So u have it...organic or inorganic....contribute to TDS...which makes sense as its call TOTAL DISSOLVED...

Hope this helps

He...he....I work in WTW (www.wtw.com), the company making those TDS, Conductivity/ PH meters etc, water is my bussiness. I every day measuring and measuring water....

[vic]

Originally Posted by Julius

He...he....I work in WTW (www.wtw.com), the company making those TDS, Conductivity/ PH meters etc, water is my bussiness. I every day measuring and measuring water....

So u saying all these ppl including me are wrong?? That only salt build up the TDS...I can add vitamins, conditioner, all other stuff and TDS will not build up??

Why dont u explain whats TDS then?? Maybe I can learn from u since u work in this line.

Originally Posted by vic

So u saying all these ppl including me are wrong?? That only salt build up the TDS...I can add vitamins, conditioner, all other stuff and TDS will not build up??

Why dont u explain whats TDS then?? Maybe I can learn from u since u work in this line.

I dun say u r wrong lah....not only salt build up the TDS but as I said all stuffs that content mineral...

I think lets stop arguing, lets back to aro development....( sorry if any of my comment not nice)...

[vic]

Originally Posted by Julius

I dun say u r wrong lah....not only salt build up the TDS but as I said all stuffs that content mineral...

I think lets stop arguing, lets back to aro development....( sorry if any of my comment not nice)...

No offence taken pal I enjoy a good argument...for myself as well as for hobbyist...Healthy argument are good as many can understand and gain more knowledge thru reading all these squabble.

Maybe ur understanding is slightly different from me.

Heres a good definition about the TDS I understand taken from http://www.tdsmeter.com/abouttds.html


What Are Total Dissolved Solids?

1. "Dissolved solids" refer to any minerals, salts, metals, cations or anions dissolved in water. This includes anything present in water other than the pure water (H20) molecule and suspended solids. (Suspended solids are any particles/substances that are neither dissolved nor settled in the water, such as wood pulp.)

2. In general, the total dissolved solids concentration is the sum of the cations (positively charged) and anions (negatively charged) ions in the water.

3. Parts per Million (ppm) is the weight-to-weight ratio of any ion to water.

4. TDS is based on the electrical conductivity (EC) of water. Pure H20 has virtually zero conductivity. Conductivity is usually about 100 times the total cations or anions expressed as equivalents. TDS is calculated by converting the EC by a factor of 0.5 to 1.0 times the EC, depending upon the levels. Typically, the higher the level of EC, the higher the conversion factor to determine the TDS.


Where do Dissolved Solids come from?

1. Some dissolved solids come from organic sources such as leaves, silt, plankton, and industrial waste and sewage. Other sources come from runoff from urban areas, road salts used on street during the winter, and fertilizers and pesticides used on lawns and farms.

2. Dissolved solids also come from inorganic materials such as rocks and air that may contain calcium bicarbonate, nitrogen, iron phosphorous, sulfur, and other minerals. Many of these materials form salts, which are compounds that contain both a metal and a nonmetal. Salts usually dissolve in water forming ions. Ions are particles that have a positive or negative charge.

3. Water may also pick up metals such as lead or copper as they travel through pipes used to distribute water to consumers.

4. Note that the efficacy of water purifications systems in removing total dissolved solids will be reduced over time, so it is highly recommended to monitor the quality of a filter or membrane and replace them when required



Heres more reading for those of u who are interested....

http://www.underwaterstuff.com/definitions.htm

http://search.globalspec.com/goto/PD...vdtds442%2Epdf

http://www.tdsmeter.com/abouttds.html

Originally Posted by vic

No offence taken pal I enjoy a good argument...for myself as well as for hobbyist...Healthy argument are good as many can understand and gain more knowledge thru reading all these squabble.

Maybe ur understanding is slightly different from me.

Heres a good definition about the TDS I understand taken from http://www.tdsmeter.com/abouttds.html


What Are Total Dissolved Solids?

1. "Dissolved solids" refer to any minerals, salts, metals, cations or anions dissolved in water. This includes anything present in water other than the pure water (H20) molecule and suspended solids. (Suspended solids are any particles/substances that are neither dissolved nor settled in the water, such as wood pulp.)

2. In general, the total dissolved solids concentration is the sum of the cations (positively charged) and anions (negatively charged) ions in the water.

3. Parts per Million (ppm) is the weight-to-weight ratio of any ion to water.

4. TDS is based on the electrical conductivity (EC) of water. Pure H20 has virtually zero conductivity. Conductivity is usually about 100 times the total cations or anions expressed as equivalents. TDS is calculated by converting the EC by a factor of 0.5 to 1.0 times the EC, depending upon the levels. Typically, the higher the level of EC, the higher the conversion factor to determine the TDS.


Where do Dissolved Solids come from?

1. Some dissolved solids come from organic sources such as leaves, silt, plankton, and industrial waste and sewage. Other sources come from runoff from urban areas, road salts used on street during the winter, and fertilizers and pesticides used on lawns and farms.

2. Dissolved solids also come from inorganic materials such as rocks and air that may contain calcium bicarbonate, nitrogen, iron phosphorous, sulfur, and other minerals. Many of these materials form salts, which are compounds that contain both a metal and a nonmetal. Salts usually dissolve in water forming ions. Ions are particles that have a positive or negative charge.

3. Water may also pick up metals such as lead or copper as they travel through pipes used to distribute water to consumers.

4. Note that the efficacy of water purifications systems in removing total dissolved solids will be reduced over time, so it is highly recommended to monitor the quality of a filter or membrane and replace them when required



Heres more reading for those of u who are interested....

http://www.underwaterstuff.com/definitions.htm

http://search.globalspec.com/goto/PD...vdtds442%2Epdf

http://www.tdsmeter.com/abouttds.html

Yap...maybe I am more practice side, those from organic sources ussually not detectable by a TDS meter (or maybe the effect is too small).

Good links.....full of very usefull info....

Cheers....

Originally Posted by kagemaru

got it man...cheerz

think got to load my wallets with US$ this time...does ur company take cards?

Thanks in advance for the kind advice too

can help me get a TDS test pen ???
=p

Originally Posted by Julius

Conductivity unit is us/cm or ms/cm not ppm....

0.3% salt is approx. 5700 us/cm conductivity.

U are probably right about this.
What I'm trying to share with bros is conductivity & salt meter are measuring the same TDS, except the units. I bought a conductivity Hanna Pen that measure in us/cm & PPM, just for info, & temperature too. Was excited about the purchased then, only to find out that this was actually measuring the salt I had added to my tank. My ignorance!