Ardan
07-07-2002, 03:34 PM
Hardness, GH, Conductivity, Meters, RO and Archived Info
The hardness of the water has to do with how many minerals are in the water. This is an important parameter for raising and breeding discus. Some minerals are needed for proper discus growth and development. Usually a conductivity of about 100microsiemens or less (3 GH) is recommended for breeding and a conductivity of 200 or more for growing discus. This provides enough calcium and magnesium for skeletal growth. Lowering the hardness can be accomplished by mixing in water than has gone through and RO (reverse osmosis) unit to remove the minerals, or water from a DI unit, distilled water, or rain water with tap water. Raising the hardness by the addition of minerals may be necessary if the water does not have enough minerals. (Water is too “soft”).
Use a TDS or Conductivity meter or a test kit for measuring hardness.
Here are some internet links and other links here at Simply Discus where this is discussed.
http://home.earthlink.net/~grenier2/discus.htm
http://www.fishkeeper.co.uk/resources/faq-begin-tapwater.asp
http://global.horiba.com/story_e/conductivity/
http://www.wateranywhere.com/Dir/~.htm
http://www.aquaworldnet.com/dbws/DiscusWater.shtml
http://enchanteddiscus.com/watregen.htm
http://bcn.boulder.co.us/basin/data/COBWQ/info/SC.html
http://www.eutechinst.com/techtips/tech-tips40.htm
http://www.myronl.com/products/solutions.htm
Conductivity/TDS vs. Hardness Test Kit
http://forum.simplydiscus.com//index.php?board=1;action=display;threadid=279
GH and Growing out Discus
http://forum.simplydiscus.com//index.php?board=1;action=display;threadid=281
Conductivity vs. TDS Meters
http://forum.simplydiscus.com//index.php?board=1;action=display;threadid=287
Best Treatment for Soft Water
http://forum.simplydiscus.com//index.php?board=1;action=display;threadid=291
Increasing GH/KH
http://forum.simplydiscus.com//index.php?board=5;action=display;threadid=1147
RO in Drinking Water vs. RO in Aquarium
http://forum.simplydiscus.com//index.php?board=5;action=display;threadid=1157
Reducing PPM (also has formulas for converting between the different hardness scales)
http://forum.simplydiscus.com//index.php?board=5;action=display;threadid=1166
Breeding Tank Water Chemistry
http://forum.simplydiscus.com//index.php?board=5;action=display;threadid=1169
RO on the Trail
http://forum.simplydiscus.com//index.php?board=5;action=display;threadid=1173
Building RO
http://forum.simplydiscus.com//index.php?board=5;action=display;threadid=1180
Will Peat Lower My GH
http://forum.simplydiscus.com//index.php?board=5;action=display;threadid=1186
GH is below 20 mg/l
http://forum.simplydiscus.com//index.php?board=5;action=display;threadid=1196
Soft Water and Low PH
http://forum.simplydiscus.com//index.php?board=5;action=display;threadid=1198
Stable and Proper H2O for Discus
http://forum.simplydiscus.com//index.php?board=5;action=display;threadid=1199
Softening Water using Blackwater?
http://www.simplydiscus.com/cgi-bin/yabb/YaBB.cgi?board=water;action=display;num=1020302664
Softening Water with Peat
http://forum.simplydiscus.com//index.php?board=5;action=display;threadid=1209
Using RO Water
http://forum.simplydiscus.com//index.php?board=5;action=display;threadid=1224
New RO Unit
http://forum.simplydiscus.com//index.php?board=1;action=display;threadid=851
Water Additives
http://forum.simplydiscus.com//index.php?board=5;action=display;threadid=1178
R/O unit Problems
http://forum.simplydiscus.com//index.php?board=1;action=display;threadid=77
Definitions of Interest About Water Related Items
http://forum.simplydiscus.com//index.php?board=5;action=display;threadid=1185
Ardan
The hardness of the water has to do with how many minerals are in the water. This is an important parameter for raising and breeding discus. Some minerals are needed for proper discus growth and development. Usually a conductivity of about 100microsiemens or less (3 GH) is recommended for breeding and a conductivity of 200 or more for growing discus. This provides enough calcium and magnesium for skeletal growth. Lowering the hardness can be accomplished by mixing in water than has gone through and RO (reverse osmosis) unit to remove the minerals, or water from a DI unit, distilled water, or rain water with tap water. Raising the hardness by the addition of minerals may be necessary if the water does not have enough minerals. (Water is too “soft”).
Use a TDS or Conductivity meter or a test kit for measuring hardness.
Here are some internet links and other links here at Simply Discus where this is discussed.
http://home.earthlink.net/~grenier2/discus.htm
http://www.fishkeeper.co.uk/resources/faq-begin-tapwater.asp
http://global.horiba.com/story_e/conductivity/
http://www.wateranywhere.com/Dir/~.htm
http://www.aquaworldnet.com/dbws/DiscusWater.shtml
http://enchanteddiscus.com/watregen.htm
http://bcn.boulder.co.us/basin/data/COBWQ/info/SC.html
http://www.eutechinst.com/techtips/tech-tips40.htm
http://www.myronl.com/products/solutions.htm
Conductivity/TDS vs. Hardness Test Kit
http://forum.simplydiscus.com//index.php?board=1;action=display;threadid=279
GH and Growing out Discus
http://forum.simplydiscus.com//index.php?board=1;action=display;threadid=281
Conductivity vs. TDS Meters
http://forum.simplydiscus.com//index.php?board=1;action=display;threadid=287
Best Treatment for Soft Water
http://forum.simplydiscus.com//index.php?board=1;action=display;threadid=291
Increasing GH/KH
http://forum.simplydiscus.com//index.php?board=5;action=display;threadid=1147
RO in Drinking Water vs. RO in Aquarium
http://forum.simplydiscus.com//index.php?board=5;action=display;threadid=1157
Reducing PPM (also has formulas for converting between the different hardness scales)
http://forum.simplydiscus.com//index.php?board=5;action=display;threadid=1166
Breeding Tank Water Chemistry
http://forum.simplydiscus.com//index.php?board=5;action=display;threadid=1169
RO on the Trail
http://forum.simplydiscus.com//index.php?board=5;action=display;threadid=1173
Building RO
http://forum.simplydiscus.com//index.php?board=5;action=display;threadid=1180
Will Peat Lower My GH
http://forum.simplydiscus.com//index.php?board=5;action=display;threadid=1186
GH is below 20 mg/l
http://forum.simplydiscus.com//index.php?board=5;action=display;threadid=1196
Soft Water and Low PH
http://forum.simplydiscus.com//index.php?board=5;action=display;threadid=1198
Stable and Proper H2O for Discus
http://forum.simplydiscus.com//index.php?board=5;action=display;threadid=1199
Softening Water using Blackwater?
http://www.simplydiscus.com/cgi-bin/yabb/YaBB.cgi?board=water;action=display;num=1020302664
Softening Water with Peat
http://forum.simplydiscus.com//index.php?board=5;action=display;threadid=1209
Using RO Water
http://forum.simplydiscus.com//index.php?board=5;action=display;threadid=1224
New RO Unit
http://forum.simplydiscus.com//index.php?board=1;action=display;threadid=851
Water Additives
http://forum.simplydiscus.com//index.php?board=5;action=display;threadid=1178
R/O unit Problems
http://forum.simplydiscus.com//index.php?board=1;action=display;threadid=77
Definitions of Interest About Water Related Items
http://forum.simplydiscus.com//index.php?board=5;action=display;threadid=1185
Ardan