Monday, January 13, 2014

Heavy Metals in Aquarium Tanks

Heavy metals
Heavy metals
Source: php.med.unsw.edu.au


What are heavy metals?


Some of the most common heavy metals include lead, zinc, copper, and cadmium. These are chemical elements that readily dissolve in water and are dangerous to aquatic life when present in abnormally large quantities.



How do heavy metals get into bodies of water?


Contamination of water supplies with heavy metals can often be traced to industrial mining. Since they are elements and not chemical compounds, heavy metals will continue to pollute bodies of water for a long time.

Aside from your water supply, heavy metals can enter your aquarium when they leach from copper or galvanized water pipes. Old pipes can also be a source of lead, zinc or copper. Water from a well can also contain high amounts of iron.

There are also certain kinds of rocks where heavy metals may be present thus you should bear this in mind when you collect rocks for your aquarium tank.

Copper is also used in fish medications for external parasites and in algaecides. If you are using gravel or other porous material in your aquarium, copper can be absorbed and released later.

Harmful effects of heavy metals


Heavy metals are important to living things however they are only needed in small amounts. On the other hand, the presence of high amounts of heavy metals in the aquarium water can be stressful to your aquatic animals.

Heavy metals have a cumulative effect, which means that once they get into an animal, they cannot be eliminated and the levels can build up gradually over time. The presence of heavy metals in the body can damage the respiratory, nervous and reproductive organs. Fish kills as a result of heavy metal exposure for a considerable period of time can eventually occur.

As for iron, even at low levels, the presence of the element in water creates a favorable environment for growth and abundance of algae.

Ways to eliminate heavy metals from your tank

  • There are chemical sponges which are commercially available that can remove some heavy metals as water passes through them. 
  • Water purifiers which are resin-based can also remove heavy metals. 
  • Activated carbon can remove only small amounts 
  • The use of chelating agents is by far the most popular method among aquarium owners. Chelating agents are chemicals which are dissolved in water and neutralize metals, converting them into a non-toxic form by the process of chelation. There are also water conditioners that contain chelating agents. 
  • Water-softening pillows are best for soft water aquariums. These pillows contain resins which can remove soluble heavy metal ions such as iron and copper as well as calcium, magnesium. 
  • Carbon filters and polyfilters together with a good mechanical filter can be fitted in the aquarium filter to remove iron and copper. 



7 comments:

  1. The pump helps to circulate oxygen in the water. pumps by Danner Many powerheads are available in a variety of sizes, well-suited for small tanks or bigger aquariums.

    ReplyDelete
  2. Academic essay writing has been a parameter to judge the merits of the students for a long time. The present time is none the less. In fact, as time is passing by, students are having more and more requirements to write an essay that will be graded. Hence seeking Do my essay help is on the rise and it will be.Choose Myassignmenthelp.com.

    If you have ever taken help from the dissertation proofreading services for your dissertation or assignments, then, you must have received an error-free copy from them. Do you want to know how do the expert proofreaders make the papers flawless so that you don’t lose any point? Read this blog to know about this.

    ReplyDelete
  3. Engineers who wish to migrate to Australia must submit a Competency Demonstration Report and the Engineers Australia must approve it. Thus, engineering students look forward to getting Cdr Australia which assists them to get a flawless CDR. This reduces the chances of rejection by the EA.
    Most students and experienced civil engineers are today looking forward to migrating to Australia as the job scope is better and bigger with a high pay scale. Therefore, getting CDR help is the only scope to gain entry into the country. Choose Myassignmenthelp.com
    The CDR for Engineers Australia must be impressive and abide by the ANZSCO code and guidelines. It should also showcase the skills of the applicants as a suitable civil engineer to work according to the Australian rules and regulations.
    The service providers who assist the students with CDR have experienced CDR report writing writers. These writers know the requirements of a CDR and do it accordingly.

    ReplyDelete
  4. Well-explained blog! Writer has described the complete information of Assignment Help in detailed manner. Find all details regarding expert help at greatassignmenthelp to achieve high marks and to boost your academic performance.
    Assignment Help Online
    Online Assignment Help
    Assignment Help Online Services
    Assignment Helper
    Assignment Assistance
    Assignment Help Experts
    Online Assignment Help Services
    Assignment Writing Help

    ReplyDelete
  5. You get the benefits of flexible payment by credit card can offer travel rewards, cash back, or other more benefits.

    ReplyDelete
  6. Livewebtutors aims at providing the students with a one stop solution for all the academic related issues. The company has Livewebtutors is an online Assignment Help and assignment writing service offering expert assignment help. Hire Australian assignment writing experts.
    visit now:- My Assignment Help

    ReplyDelete
  7. Hi, Thanks for sharing this kind of post it are really nice. If any engineering students want CDR report writing help. And you don't want to know to how to get this service then you have simply contacted the expert team we have to resolve your all query and providing high-quality CDR writing help.

    ReplyDelete