Green water

Discussion in 'General Discussions' started by T. Guppy, May 24, 2019.

  1. T. Guppy

    T. Guppy

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    Hello everyone,
    Please could I have some advice, I have a 30l tank and it's green. I've had this tank for roughly 5 months, and I've been struggling with the water clarity for a while now. I used to have 11 small fish and a snail, and last month I moved them all to a big tank except for the snail. In that time I cleaned out the 30l tank and it was clear for a few weeks, so I got a betta fish and put him in there with the snail as well as 2 siamese algae eaters, which didn't get on well with the betta so I moved them to the bigger tank too.
    So now it's just my betta and an assassin snail and a few plants.
    When it first started I tried leaving lights off for a couples of days, and my plants took a beating but the water stayed green. Is there anything else I can do?
    Also I do water changes once a week.
     
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  3. pierreschoonraad

    pierreschoonraad

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    I have actually strughled to get green water going for my fry. Direct sunlight, what I get in winter, doesn't grow green water. But during summer I can get it going. No direct sun light but it is open to light the whole day.

    If your tank is placed close to a window, that is open, it might be the cause of this.

    Sent from my SM-A720F using Tapatalk
     
  4. OP
    T. Guppy

    T. Guppy

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    No my tank is in a north facing room but it's tucked between 2 cupboards so it gets light but no direct sun..
     
  5. Hawk

    Hawk Clown Fish :-)

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    What percentage water changes are you doing? What is your light regime and what lights are they? What is your substrate?
     
  6. OP
    T. Guppy

    T. Guppy

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    Normally I do a 25% water change. My lighting is an led 5w, and it's on 6 to7 hours.
    When this first happened I kept the lights off and curtains closed for a few days and it didn't go away..
    I don't know what the substrate is, it's that gravel you get with start up fish tanks, mixed with the same type of gravel that's slightly bigger..
     
  7. Hawk

    Hawk Clown Fish :-)

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    Do you have a thread to this tank or a pic I can look at?
     
  8. OP
    T. Guppy

    T. Guppy

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    I did a water change today

    15587199800984851177476351636215.jpg
     
  9. Hawk

    Hawk Clown Fish :-)

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    How often and how much are you feeding your fish?

    Are you feeding your plants and if so, what?
     
  10. OP
    T. Guppy

    T. Guppy

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    I feed my fish once a day, with a tiny pinch of food. It's those tiny fish pellets. And I don't feed the plants, I assume if the algae is growing so well then there should be enough nitrates for them
     
  11. Hawk

    Hawk Clown Fish :-)

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    What temp is the tank?
     
  12. OP
    T. Guppy

    T. Guppy

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    It's between 24 and 25 degrees celcius.
    And the name of the food is tetra prima mini granules
     
  13. Hawk

    Hawk Clown Fish :-)

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    You tank has algae bloom. I’ve got to go but here’s what I would suggest. Do a big water change 70% (feed the new water in slowly making sure to use something like Prime).

    If you don’t have snails get some and look for ottocinclus. Removing the sae didn’t help your problem but they are a problem. They’re boisterous and they get lazy at eating algae and eat fish food instead.

    In a weeks time if it’s not clear do another big water change.

    You don’t need to feed your fish daily.

    Worst case get a Uct filter but I wouldn’t bother for this size tank. If you keep up the water changes it will go away.
     
  14. OP
    T. Guppy

    T. Guppy

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    Oh OK I'll try that then. Thank you very much for your help!
    When you say snails, do you mean ones other than assassin snails? Also won't an oto get too big for a 30l?
     
  15. Hawk

    Hawk Clown Fish :-)

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    Not assassins. The others.

    Ottocinclus stay small...I guess about 5cm. Google them. I haven’t bought fish in awhile but they used to be hard to come by so good luck
     
  16. Hawk

    Hawk Clown Fish :-)

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    My tanks have loads of snails :)
     
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  17. OP
    T. Guppy

    T. Guppy

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    Sorry I just Googled, I was thinking of that other algae eater.
    I have an assassin currently, will it not eat other snails?
    There's a few fish shops near me so I'll look around
     
  18. Hawk

    Hawk Clown Fish :-)

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    1915FFFF-93C3-474D-97DD-4BB299C2422E.jpeg

    :D
     
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  19. Hawk

    Hawk Clown Fish :-)

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    It will. Move it to your other tank until the new snails get out of hand then put it back
     
  20. OP
    T. Guppy

    T. Guppy

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    Your tank looks stunning! Fish tank goals right there!
     
  21. Hawk

    Hawk Clown Fish :-)

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    Shot. It needs a bit of tlc.
     

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