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Thread: Tank water greenish

  1. #1
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    Tank water greenish

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    been running my 3ft tank for about 2-3 weeks but the water is consistently greenish in color. using a atman external filter. why is that?

    currently have several java ferns, java moss, vallis and tennellus. no signs of algae on glass or leaves of the plants.

  2. #2
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    yo buddy, u just kenna greenwater sia .... its a type of algae problem, if u got uv steriliser than can kill these mircoscopic algae, if not ... change water etc...

    search these forum under greenwater and u can find many suggestions

    sam robin

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    I agreed.

    There are a number of disccussons on this topic aldy. Please search through.

    But what i used to do is to use a blackout.
    Change more than 50% of your tank water over the next few days.
    You must remember not to switch on your light and cover your whole tank with a blanket or anything to prevent any light from reaching in.
    And no adding of any fertilizer please.

    Although your plants may suffer, but this is one of the cheaper way.

  4. #4
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    Hey,

    What i did is something simpler, just suspend a bag of activated carbon in your tank

    Cheers
    Vincent

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    Re:

    [quote:497ce66cb2="TanVincent"]Hey,

    What i did is something simpler, just suspend a bag of activated carbon in your tank

    Cheers
    Vincent[/quote:497ce66cb2]

    Or better, put a bag of AC in the filter.
    I'm back!

  6. #6
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    Use floating plants and fast growers to help too. Or deploy goldfish. Whahaha.
    Cheerio,
    Sleepy_lancs
    *~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*
    An afternoon trimming my watery garden is better
    then an afternoon with a therapist
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  7. #7
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    put in a bit of ammolock2, and then quickly do water change. Or the ofther way around may work as well.
    Oh, the rare old Whale, mid storm and gale. In his ocean home will be. A giant in might, where might is right. And King of the boundless sea.

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    Re:

    [quote:acedae9c16="Sleepy_lancs"]Use floating plants and fast growers to help too. Or deploy goldfish. Whahaha.[/quote:acedae9c16]
    Goldfish can reduce greenwater?
    I'm back!

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    Re:

    Mr Loh @ killies.com tried the blackout method and his tank became clear after afew days.

    Else you can buy live daphnia from LFS, they will eat up the suspended alage and your fishes will have them for snacks later.

  10. #10
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    The daphnia method works. For maximum work done before your fishes feast on them, suspend them in one of those breeding nets. When their job is done, you may release them as food or throw them away.

    Tip: Pour the daphnia into the breeding net over a basin, then place them in your tank. You don't want to pour all that water from the plastic bag into your tank.

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    Re:

    The water that comes with the daphnia ......

  12. #12
    I suggest you not to use Daphnia because its very dirty and smelly. They are found in pond and feed on duck or goose dropping , wah damn disgusting lah. I suggest you to use Nitrate absorber, Nitrate are toxic given out by your fishes and are nutrients to plant and algae. When you do not have enough plant to use up the nitrate in your tank, Mr Algae will comein and help themselve to it so the best way out will be to remove all the Nitrate.

    Just go to any LFS to get the nitrate absorber but please remember to wash away the coal dust before you place it in your filter, the coal dust is highly toxic to your fishes.

    Cheers
    People come here to shit and stink,
    Others come here to sit and think,
    I come here to scratch my balls and see the writings on the wall.

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    any particular brand of nitrate remover?

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    Re:

    [quote:35657d735d="victri"]The daphnia method works. For maximum work done before your fishes feast on them, suspend them in one of those breeding nets. When their job is done, you may release them as food or throw them away.

    Tip: Pour the daphnia into the breeding net over a basin, then place them in your tank. You don't want to pour all that water from the plastic bag into your tank.[/quote:35657d735d]

    hi, this daphnia thing sounds interesting. can u get it in normal lfs? i'm asking just in case i need it.

    appreciate yr help!

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    Re:

    [quote:920036e796="buddy"]any particular brand of nitrate remover?[/quote:920036e796]

    Suggest you don't add anyting chemicals.

    Try the blackout method and do a huge water change every few days.

    Manage your nutrients well or else, the greenwater will come back again.

  16. #16
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    Re:

    daphnia is only known as water flea, its called 'boon' on hokkien.

    They are usually sold in $1 packets and its looks like brownish-red saw dust suspended in water.

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    You can try Algone. Quite expensive but works for me.

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    How true is the active carbon method?

    Can it really work?

  19. #19
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    dont think the greenish water is algae. did the 50% water change and it still looks greenish. if i take a sample of the water and compare against a piece of white paper it does not look greenish at all..

    wondering whether it could be the fallout from one of the plants i have in the tank which has rotting leaves

  20. #20
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    Why don't you take a photo??
    I'm back!

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