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  1. #1

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    Default Major algae outbreak in new tank


    0 Not allowed!
    My tank has been set up for just over a month now and recently and over the last week or 2 ive noticed algae has appeared in a big way:



    Its all over the sand, all over the 'face', and its also on my fake log and my Java Fern leaves. I dont understand why there is so much, my tank is still cycling and I have the light on for usually 8 hours a day. Once my tank has cycled I plan to get some Amano/Cherry shrimp, will these sort the algae out?
    Last edited by serbusfish; 12-16-2012 at 10:27 PM.

  2. #2

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    Looks like brown algae/diatoms, and it pretty much always shows up in a freshwater tank at a month or so old (part of the tank maturing, I suppose). It's very soft, and you can just wipe it off really easily, and as your tank matures more, it will stop showing up (after another 2-3 weeks).

  3. #3

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    That does look more like diatoms rather than algae. That is common in new tanks due to the silicates released by the new substrate. It does go away with time once all the silicates are gone.
    If you take your time to do the research FIRST, you can successfully set-up and keep ANY type of aquarium with ease.
    "Not using a quarantine tank is like playing Russian roulette. Nobody wins the game, some people just get to play longer than others." - Anthony Calfo
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  4. #4

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    Ah right, I didnt realize it was temporary :) Cheers guys

  5. #5

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    It won't go away on its' own, but it'll stop growing. From my experience, you'll have to manually remove it. Right now it would be easy to siphon out of there. If you wait, it might become gunkier and bunch up a bit. It might wrap around stems or your driftwood, making it difficult to remove.
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  6. #6

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    It can be caused by silicates, phosphates, and high nitrates. Low light, or not enough light is another thing that can cause diatoms to start growing.

    Phosphates can come from your tap water, fish food, and fish poo.
    Your fishes waste is where the nitrates come from.
    And the silicates usually come from a few kinds of sands, that people use for substrates - sometimes it can come from glass.

    So a few things that you can check, if you like.
    1. You can check your tap water for phosphates.
    2. Test your tank water for high nitrates.
    3. What kind of substrate do you have? Play sand?

    Things that you can do to treat the problem.
    1. If you have high phosphates in your tap water, then you might have to concider using a product like PhosBan or Rowaphos.
    2. If the tank water is the problem, and has high nitrates and/or phosphates, then you need to do large water changes - at least 50% - and gravel vacuums to bring those levels down.
    3. Look at your feeding technique. Are you feeding them too much? Are you feeding them once a day, twice a day, or three times a day? If you're feeding them once a day, then there is a fair chance that you're dropping far too much food in the tank for them to eat in one go. Whatever food isn't eaten will settle in the substrate, rot, then it's producing nitrates/phosphates to build up in the water. I feed mine three times a day - three small serves. This way they all get some food, but it's all eaten.
    4. If you have play sand as the substrate, get rid of it and get something else to replace it with. The silicates can leech out of that sand for ages, and continue to cause these diatom blooms.

    But as some of the others have said, they can start to grow in new and or cycling tanks, and they can go away after a little while, usually once you get into a normal cleaning routine.
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  7. #7

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    If you take your time to do the research FIRST, you can successfully set-up and keep ANY type of aquarium with ease.
    "Not using a quarantine tank is like playing Russian roulette. Nobody wins the game, some people just get to play longer than others." - Anthony Calfo
    Fishless Cycle Cycling with Fish Marine Aquarium Info [URL="http://saltwater.aquaticcommunity.com/"]

  8. #8

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    Default


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    Thanks a lot for those links Cliff, very helpful, I think once my tank has settled down and cycled I will go through the steps in the first one and see what happens.

    They definitely arent being causing by Nitrates as I only have around 10 - 20mg/l at the moment. The sand was bought from an Aquatic store, they simply had bags of different coloured sand so I chose a lighter coloured one. I used a bag in my family tank and they have none of these diatoms plus their nitrates are much higher than in my tank.

    I will also test my water for phosphate, although as my parents tank uses the same water supply im doubtful this could be the cause?

  9. #9

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    Get some Nerite Snails. You will have no algae problems after that, make sure your tank is cycled first though. They need clean water that is low in nitrates. They will remove all types of algae. If you have an acrylic tank however, do not get them as they will leave teeth marks in it.

  10. #10

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    Quote Originally Posted by jeffs99dime
    Get some Nerite Snails. You will have no algae problems after that, make sure your tank is cycled first though. They need clean water that is low in nitrates. They will remove all types of algae. If you have an acrylic tank however, do not get them as they will leave teeth marks in it.
    I might do actually, how many should I get for a 27 gallon? 2 or 3?

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