https://www.theaquariumwiki.com/w/index.php?title=Hydrogen_peroxide&feed=atom&action=historyHydrogen peroxide - Revision history2024-03-29T07:45:32ZRevision history for this page on the wikiMediaWiki 1.29.2https://www.theaquariumwiki.com/w/index.php?title=Hydrogen_peroxide&diff=89242&oldid=prev216.252.91.202 at 13:36, 28 June 20212021-06-28T13:36:48Z<p></p>
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<td colspan='2' style="background-color: white; color:black; text-align: center;">Revision as of 13:36, 28 June 2021</td>
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<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>==As an algae killer==</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>==As an algae killer==</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Concentrations of around 60ml of 3% H2O2 (30ml of 6%, 15ml of 9%) in a {{L|250}} tank directly applied (usually via a syringe) slowly over 5 minutes onto a clump of algae will kill it and then rapidly be diluted and converted into harmless oxygen and water. Observe the results and wait 48 hours before applying any more. Plants may be <del class="diffchange diffchange-inline">effected</del>.  </div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Concentrations of around 60ml of 3% H2O2 (30ml of 6%, 15ml of 9%) in a {{L|250}} tank directly applied (usually via a syringe) slowly over 5 minutes onto a clump of algae will kill it and then rapidly be diluted and converted into harmless oxygen and water. Observe the results and wait 48 hours before applying any more. Plants may be <ins class="diffchange diffchange-inline">affected</ins>.  </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>*Over dosing will kill snails, shrimps, frogs, and fish!</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>*Over dosing will kill snails, shrimps, frogs, and fish!</div></td></tr>
</table>216.252.91.202https://www.theaquariumwiki.com/w/index.php?title=Hydrogen_peroxide&diff=70928&oldid=prevQuatermass: /* As an algae killer */2011-11-23T16:10:32Z<p><span dir="auto"><span class="autocomment">As an algae killer</span></span></p>
<p><b>New page</b></p><div>__TOC__<br />
== About Hydrogen Peroxide ==<br />
[[Image:H2O2 Solution.jpg|right|thumb|Typical cost £0.80 UK]]<br />
'''Hydrogen peroxide''' (H2O2) is a very pale blue liquid which appears colourless in a dilute solution, slightly more viscous than water. It is a weak acid. It has very strong oxidizing properties and is therefore a powerful bleaching agent that has found uses as a disinfectant.<br />
<br />
Even though it is a powerful and highly toxic chemical it can have a use in the aquarium if used in low dosages and with great care.<br />
<br />
When added to water it rapidly breaks down into water and oxygen. <br />
<br />
*It is sensitive to light and rapidly breaks down in its presence.<br />
<br />
The concentration this liquid is supplied by your chemist shop is usually around 2 to 9%.<br />
Though check with the instructions on your bottle. You'll need to know the concentration!<br />
<br />
*If you are using 3% hydrogen peroxide, each 1 ml added per 30 Litres (8 US gallons) will increase total peroxide levels by 1&nbsp;mg/l. 15&nbsp;mg/l per 48 hours is thought by many to be a fish safe concentration.<br />
<br />
<br />
==As an oxygen aid==<br />
You can purchase small white tablets which are a dilute solution of H2O2 and when the tablets dissolve they release oxygen to the water. This is intended to aid the transport of fish in bags of water. <br />
<br />
Alternatively drip liquid H2O2 into the tank in very low concentrations. Typically 0.05 times your tank volume in litres assuming 3% solution. So a 60L tank would need 0.05 × 60L = 3ml per 12 hours.<br />
<br />
{| class="wikitable" style="text-align:center" border=1<br />
|+ '''Levels of H2O2 as an Oxygen aid per 12 hours'''<br />
!% solution!!× per litre!!× per US gallon!!example {{L|60}} tank!!example {{L|250}} tank<br />
|-<br />
|3%||0.05||0.187<br />
|style="background:#C3FDB8" |3ml<br />
|style="background:#C3FDB8"|12.5ml<br />
|-<br />
|6%||0.025||0.0935<br />
|style="background:#C3FDB8" |1.5ml<br />
|style="background:#C3FDB8"|6ml<br />
|-<br />
|9%||0.016||0.062<br />
|style="background:#C3FDB8"|1ml<br />
|style="background:#C3FDB8"|4ml<br />
|-<br />
|}<br />
<br />
<br />
*These cautious levels should be safe for nitrifying bacteria, fish, frogs and invertebrates.<br />
<br />
*In extreme emergencies a five times dose (0.25 instead of 0.05 per litre)<ref>The Tropical Fishlopaedia book by Mary Bailey and Peter Burgess (on page 314) say 1-2ml of 3% solution per {{L|10}} (5-10ml per {{gal|10}}) can be used as a oxygen aid. (ISBN 1-86054-102-X)</ref> can be performed to save gasping fish. Though you may get some damage to your nitrifying bacteria or invertebrates.<br />
<br />
==As an algae killer==<br />
Concentrations of around 60ml of 3% H2O2 (30ml of 6%, 15ml of 9%) in a {{L|250}} tank directly applied (usually via a syringe) slowly over 5 minutes onto a clump of algae will kill it and then rapidly be diluted and converted into harmless oxygen and water. Observe the results and wait 48 hours before applying any more. Plants may be effected. <br />
<br />
*Over dosing will kill snails, shrimps, frogs, and fish!<br />
<br />
*Adding Barley Straw to ponds and aquariums has long been used to fight off algae. The straw decomposes and it is believed that it releases small quantities of ''Hydrogen peroxide'' which slowly kills the algae.<ref>[http://barleyworld.org/barleystraw/Barley%20Straw%20-%20Algae%20Control%20Lit%20Anal%20Final.pdf Barley Straw - Algae Control Literature Analysis]</ref><br />
<br />
==As an antibacterial agent==<br />
Dilute concentrations added to the tank water can kill all bacteria in the water, including the nitrifying bacteria. It will also kill all micro-organisms, good and bad.<br />
<br />
*Taking an animal with a infected wound out of the water and dabbing the area with Hydrogen peroxide can be an effective way to remove bacteria from the area and it will remove dead decaying flesh from the wound.<br />
:But you have to balance this with stressing the animal by trying to catch it, removing it from the water and applying this chemical which may or may not cause the animal pain as it destroys bacteria and dead skin alike. A stressed animal can't heal itself. Plus how do you judge the amount of time to keep the animal out of water to ensure the chemical does it's work on the skin or fin, and determine the percentage of H2O2 to use?<br />
<br />
==As an oxidising agent on organic mulm==<br />
Dilute concentrations of H2O2 applied to a tank can breakdown buildup of [[mulm]].<br />
See Oxygen aid.<br />
<br />
==As a safe alternative to using bleach==<br />
H2O2 in high levels (1 part H2O2 to 4 parts water) will perform the same job as bleach for cleaning equipment and empty aquariums. Unlike bleach it does not stick to surfaces and only breaks down into water and oxygen.<br />
<br />
*The density of 3% H2O2 is about 1,015g/L. Thus, 15ml is 15.22g, 3% of which is H2O2 (457&nbsp;mg). Added to {{gal|8}} yields 15.077&nbsp;mg/L.<br />
To achieve 15&nbsp;mg/l you want to add 1500&nbsp;mg of H2O2 which will require the addition of 49.28 ml of 3% H2O2.<br />
<br />
== References==<br />
<references/><br />
<br />
<br />
== Links ==<br />
*[[w:Hydrogen Peroxide|Wikipedia]]<br />
*[http://www.h2o2.com/ H2O2.com]<br />
*[http://www.h2o2.com/intro/msds.html MSDS Safety sheets]<br />
*[http://fish.bakerweb.biz/peroxide.html Concerns about H2O2 in an aquarium and lethal concentrations]<br />
*[http://www.thekrib.com/Plants/Algae/hydrogen-peroxide.html The Krib]<br />
*[http://www.skepticalaquarist.com/docs/health/hydper.shtml The Skeptical Aquarist - Hydrogen peroxide]<br />
*[http://www.malawicichlidhomepage.com/aquainfo/algae_peroxide.html Fighting the algae with Hydrogen Peroxide]<br />
*[http://www.gpodio.com/h2o2.asp Eliminating Algae with H2O2]<br />
*[http://news.bbc.co.uk/1/hi/health/8078525.stm BBC News] - Natural bleach 'key to healing'<br />
<br />
[[Category:Glossary]]<br />
[[Category:Chemical treatments]]</div>Quatermass