https://www.theaquariumwiki.com/w/api.php?action=feedcontributions&user=108.54.190.47&feedformat=atomThe Aquarium Wiki - User contributions [en]2024-03-28T19:38:36ZUser contributionsMediaWiki 1.29.2https://www.theaquariumwiki.com/w/index.php?title=General_Hardness&diff=88153General Hardness2020-06-29T19:09:05Z<p>108.54.190.47: </p>
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<div>== °GH - General Hardness ==<br />
General, total or permanent hardness is a measure of the overall concentration of [[calcium]], [[magnesium]] and other ions. It's measured in degrees, with one degree equal to about ''17.9mg/l (17.86mg/l)''. The degree symbol is often replaced with a "[[d]]" (i.e. 6dGH or just 6dH). The harder the water, the higher the GH number.<br />
<br />
<br />
*Some countries measure GH in [[ppm]] (like the USA), others use the German unit dH.<br />
<br />
*Some countries use 'GCH' (General Carbonate Hardness) instead of 'GH'.<br />
<br />
*Some retailers (ADA) use TH abreviation (Total Hardness)<br />
<br />
{| border="1" class="wikitable" style="text-align:center"<br />
|+ Levels of Hardness<br />
! Degrees !! Parts Per Million || Description<br />
|-<br />
! 0 - 4 dH<br />
| 0 - 70 ppm || wet<br />
|-<br />
! 4 - 8 dH<br />
| 70 - 140 ppm || soft<br />
|-<br />
! 8 - 12 dH<br />
| 140 - 210 ppm || medium<br />
|-<br />
! 12 - 18 dH<br />
|210 - 320 ppm || firm<br />
|-<br />
! 18 - 30 dH<br />
|320 - 530 ppm || hard<br />
|-<br />
! Higher <br />
| > 530ppm || solid<br />
|}<br />
<br />
<br />
==Raising GH==<br />
If you live in an area with low GH water you may need to add chemicals to increase the GH level to a level suitable for your aquatic animals.<br />
<br />
*[[Calcium carbonate]] (CaCO3) is a typical and cheap material to do this. You can find it as Coral sand, coral pieces, sea shells, Cuttle-bone pieces, etc. It is also sold in gardening shops as 'Lime' usually in a powder form. It will however raise [[KH]] as well as GH. Which is probably a good thing if you live in a soft water area.<br />
<br />
*[[Magnesium sulphate]] (MgSO4) or more commoningly known as Epsom salt. This will raise GH without altering [[KH]]. Used in a ratio of 1:3 with CaSO4 ([[Calcium sulphate]]) (1 part MgSO4 to 3 parts CaSO4) to make your own GH mix for a freshwater aquarium.<br />
<br />
== Links ==<br />
*See [http://www.thekrib.com/Plants/CO2/hardness-larryfrank.html The Krib] for more on this.<br />
*[http://web.archive.org/web/20060116204426/http://www.marineland.com/science/articles/9hardness.asp Hardness: A Term with Many Meanings]<br />
<br />
*[http://www.aquaticplantcentral.com/forumapc/el-natural/29062-calcium-dosing-procedure.html How to raise GH without raising pH]<br />
<br />
[[Category:Glossary]]</div>108.54.190.47https://www.theaquariumwiki.com/w/index.php?title=Difficulty&diff=88152Difficulty2020-06-29T19:06:20Z<p>108.54.190.47: </p>
<hr />
<div>{{Stub}}<br />
'''Difficulty''' is a reference to how easy or difficult a fish is to keep.<br />
<br />
==Simple==<br />
<br />
These are fish that are effortless to look after and a perfect choice for beginners. <br />
<br />
==Easy==<br />
<br />
These are aquatic animals that are easy to keep in an cycled aquarium tank. The animals listed here are well able to tolerate some of the basic mistakes of a beginners tank.<br />
<br />
They are hardy animals that can withstand a wide range of pH or a small amount of ammonia or nitrite and can adapt to a wide range of GH and KH.<br />
<br />
They are undemanding in their food requirements and are therefore cheap and easy to feed.<br />
<br />
==Moderate==<br />
<br />
These are aquatic animals that are moderate to keep in an cycled aquarium tank. The animals listed here are relatively hardy, but may have some requirements that means they either will not tolerate flucuations in their tank environment, need careful consideration with tankmates or need specific foods.<br />
<br />
These would be best kept by those with some experience in fishkeeping, or by beginners after extensive research.<br />
<br />
==Challenging==<br />
<br />
These are aquatic animals that are challenging to keep in an cycled aquarium tank. These fish will probably be hard to find and expensive to buy. They may grow large or be rare in the aquarium trade. They may also be fussy with water conditions and food.<br />
<br />
==Difficult==<br />
<br />
Creatures in this category should only be attempted by experienced fishkeepers. This may be because the creatures are high maintenance and need immaculate water conditions, grow large, or are not sociable with other fish or invertebrates.<br />
<br />
==Impossible==<br />
<br />
These creatures are classed as "impossible" as they may grow to an extraordinary size, need exceptional water conditions, or simply not adapt to life in captivity at all.</div>108.54.190.47https://www.theaquariumwiki.com/w/index.php?title=Difficulty&diff=88151Difficulty2020-06-29T19:05:31Z<p>108.54.190.47: </p>
<hr />
<div>{{Stub}}<br />
'''Difficulty''' is a reference to how easy or difficult a fish is to keep.<br />
<br />
==Simple==<br />
<br />
These are fish that are effortless to look after and a perfect choice for beginners. <br />
<br />
==Easy==<br />
<br />
These are aquatic animals that are easy to keep in an cycled aquarium tank. The animals listed here are well able to tolerate some of the basic mistakes of a beginners tank.<br />
<br />
They are hardy animals that can withstand a wide range of pH or a small amount of ammonia or nitrite and can adapt to a wide range of GH and KH.<br />
<br />
They are undemanding in their food requirements and are therefore cheap and easy to feed.<br />
<br />
==Medium==<br />
<br />
These are aquatic animals that are moderate to keep in an cycled aquarium tank. The animals listed here are relatively hardy, but may have some requirements that means they either will not tolerate flucuations in their tank environment, need careful consideration with tankmates or need specific foods.<br />
<br />
These would be best kept by those with some experience in fishkeeping, or by beginners after extensive research.<br />
<br />
==Challenging==<br />
<br />
These are aquatic animals that are challenging to keep in an cycled aquarium tank. These fish will probably be hard to find and expensive to buy. They may grow large or be rare in the aquarium trade. They may also be fussy with water conditions and food.<br />
<br />
==Difficult==<br />
<br />
Creatures in this category should only be attempted by experienced fishkeepers. This may be because the creatures are high maintenance and need immaculate water conditions, grow large, or are not sociable with other fish or invertebrates.<br />
<br />
==Impossible==<br />
<br />
These creatures are classed as "impossible" as they may grow to an extraordinary size, need exceptional water conditions, or simply not adapt to life in captivity at all.</div>108.54.190.47https://www.theaquariumwiki.com/w/index.php?title=Difficulty&diff=88150Difficulty2020-06-29T18:53:11Z<p>108.54.190.47: </p>
<hr />
<div>{{Stub}}<br />
'''Difficulty''' is a reference to how easy or difficult a fish is to keep.<br />
<br />
==Simple==<br />
<br />
These are fish that are effortless to look after and a perfect choice for beginners. <br />
<br />
==Easy==<br />
<br />
These are aquatic animals that are easy to keep in an cycled aquarium tank. The animals listed here are well able to tolerate some of the basic mistakes of a beginners tank.<br />
<br />
They are hardy animals that can withstand a wide range of pH or a small amount of ammonia or nitrite and can adapt to a wide range of GH and KH.<br />
<br />
They are undemanding in their food requirements and are therefore cheap and easy to feed.<br />
<br />
==Moderate==<br />
<br />
These are aquatic animals that are moderate to keep in an cycled aquarium tank. The animals listed here are relatively hardy, but may have some requirements that means they either will not tolerate flucuations in their tank environment, need careful consideration with tankmates or need specific foods.<br />
<br />
These would be best kept by those with some experience in fishkeeping, or by beginners after extensive research.<br />
<br />
==Challenging==<br />
<br />
These are aquatic animals that are challenging to keep in an cycled aquarium tank. These fish will probably be hard to find and expensive to buy. They may grow large or be rare in the aquarium trade. They may also be fussy with water conditions and food.<br />
<br />
==Difficult==<br />
<br />
Creatures in this category should only be attempted by experienced fishkeepers. This may be because the creatures are high maintenance and need immaculate water conditions, grow large, or are not sociable with other fish or invertebrates.<br />
<br />
==Impossible==<br />
<br />
These creatures are classed as "impossible" as they may grow to an extraordinary size, need exceptional water conditions, or simply not adapt to life in captivity at all.</div>108.54.190.47https://www.theaquariumwiki.com/w/index.php?title=Difficulty&diff=88149Difficulty2020-06-29T18:51:52Z<p>108.54.190.47: </p>
<hr />
<div>{{Stub}}<br />
'''Difficulty''' is a reference to how easy or difficult a fish is to keep.<br />
<br />
==Very easy==<br />
<br />
These are fish that are very simple to look after and a perfect choice for beginners. <br />
<br />
==Easy==<br />
<br />
These are aquatic animals that are easy to keep in an cycled aquarium tank. The animals listed here are well able to tolerate some of the basic mistakes of a beginners tank.<br />
<br />
They are hardy animals that can withstand a wide range of pH or a small amount of ammonia or nitrite and can adapt to a wide range of GH and KH.<br />
<br />
They are undemanding in their food requirements and are therefore cheap and easy to feed.<br />
<br />
==Moderate==<br />
<br />
These are aquatic animals that are moderate to keep in an cycled aquarium tank. The animals listed here are relatively hardy, but may have some requirements that means they either will not tolerate flucuations in their tank environment, need careful consideration with tankmates or need specific foods.<br />
<br />
These would be best kept by those with some experience in fishkeeping, or by beginners after extensive research.<br />
<br />
==Challenging==<br />
<br />
These are aquatic animals that are challenging to keep in an cycled aquarium tank. These fish will probably be hard to find and expensive to buy. They may grow large or be rare in the aquarium trade. They may also be fussy with water conditions and food.<br />
<br />
==Difficult==<br />
<br />
Creatures in this category should only be attempted by experienced fishkeepers. This may be because the creatures are high maintenance and need immaculate water conditions, grow large, or are not sociable with other fish or invertebrates.<br />
<br />
==Impossible==<br />
<br />
These creatures are classed as "impossible" as they may grow to an extraordinary size, need exceptional water conditions, or simply not adapt to life in captivity at all.</div>108.54.190.47