Water Changes

Discussion in 'Water Parameters and Additives' started by b-rad, 4 Mar 2010.

  1. b-rad

    b-rad

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    Im going to do a water change this weekend, My tank is 1000 litres. how much do you guys recommend I change? Thanks
     
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  3. Tobes

    Tobes Retired Moderator

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    Well, most guys say it's best to do weekly water changes of +- 10-15%. I also do 10% a week :)

    Just make sure the new water is the same temp and salinity as the tank water.
     
  4. Dewald@Dorry

    Dewald@Dorry

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    Well, the general rule is that one needs to do a 10% water change once a week. So this would be 100l for your system.

    BUT, it all depends on one's system. If you feed loads of planton like foods and have lots of fish and the water parameters are battling to stay stable, you might need to do more like 20% - 200l.

    If you only have one fish and a couple of corals in that system, you could get away with ony doing a 10% water change every 2nd or 3rd week.

    You need to check your water parameters and then decide what works for you. One thing I have learned in this hobby, is that if in doubt, do a water change!!;)
     
  5. b-rad

    b-rad Thread Starter

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    Thanks I will do
     
  6. Tobes

    Tobes Retired Moderator

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    It obviously depends on when last you did a water change. If some time ago, a larger one can only be beneficial ;)
    Do you have a thread you started when you joined? Would like to see your tank and filtration system :)
     
  7. Tobes

    Tobes Retired Moderator

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    Don't worry, found the thread.
     
  8. mandarinman

    mandarinman

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  9. Tobes

    Tobes Retired Moderator

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    This is why I said this ;) , and he does not have SPS.


     
  10. mandarinman

    mandarinman

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    tobes you and i have different opinions regarding size of water changes if you look at your comment advocating large water change if not having done one for a while. i advocate smaller ones to prevent shock due to lighting being able to penetrate water to a greater extent and at a greater intensity if water is dramatically cleaner(less floating particles ,yellowing etc)
    but other than that we agree totally on all points
     
  11. b-rad

    b-rad Thread Starter

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    Have not done a water change for a month now and my water is looking crystal clear should I even do a water change?
     
  12. Tobes

    Tobes Retired Moderator

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    Yes, because trace elements like iodine for eg gets used up, which is in the salt and needs replacement.
    Posted via Mobile Device
     
  13. Tobes

    Tobes Retired Moderator

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    Well, when I say larger I mean 25%, not 50% or more. I don't think a 25% will cause shock or anything else if a waterchange wasn't done for a month. And to me a month is a while ago as I believe in weekly changes.
    Posted via Mobile Device
     
  14. mandarinman

    mandarinman

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    yes do a water change as a preventative measure instead of a corrective measure. not all the things going on in your tank are visible until they are at a problem level(it is good to have a specific routine that is not reactionary
     
  15. b-rad

    b-rad Thread Starter

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    Okay cool have just made 50 litres will put on another 50 litres tomorrow, I usually have a 50 litre drum with a small pump circulating the water in there to mix up the salt is that okay?
     
  16. mandarinman

    mandarinman

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    that is good, if you are able to put a heater in it to bring it up to temp if necessary that would be great.. some guys like to airate the water with an air pump as well to settle the ph apparently.
     
  17. ADVdiver

    ADVdiver

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    B-rad please tells us what filtration and what stock you have in the aquarium. I maintain aquariums on a weekly, bi-weekly and monthly basis. On average all of these aquariums have between a 10% and 20% water change on a monthly basis whether this is done by regular small water changes or a planned large water change.
    If the filtration system is not handling the waste load of the aquarium it may be require more water changes. IMO
     
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