Tank water cloudy

  1. g

    gloaming New Member Member

    Hi! I have a five-gallon Fluval Chi with a Betta and two cory catfish. It's beet set up for about three weeks now. It has three live plants (not sure what they are, as they came in a packet of bulbs). I don't know the ammonia, nitrate, and nitrite levels. How do you figure that out?

    Yesterday I did a 25% water change, and the water is still cloudy. I'm also seeing a lot of brown algae. Not sure what to do about that. The filter is running nicely and the fish are active.

    Any ideas on why the water is cloudy? I read somewhere that brown algae is normal for a new tank, but I still don't like it!

    Thanks in advance for any replies!
     
  2. FallenOwl

    FallenOwl Well Known Member Member

    As I said on your other post, you should not have Cory catfish in a 5g tank.
    What kind of substrate do you have?
     
  3. OP
    OP
    g

    gloaming New Member Member

    The substrate is sand.
     


  4. FallenOwl

    FallenOwl Well Known Member Member

    Is it play sand, or aquarium sand?
     
  5. OP
    OP
    g

    gloaming New Member Member

    It's aquarium sand.
     
  6. FallenOwl

    FallenOwl Well Known Member Member

    Did you rinse it?
    If you did, IME, you just need to let it sit for a couple hours, although sometimes it can take 1-3 days to completely settle.
     
  7. OP
    OP
    g

    gloaming New Member Member

    I rinsed it before I set up the tank about three weeks ago, and I haven't had a problem with cloudy water until now. Could it be a problem with ammonia, nitrites, or nitrates? I feel like such a bonehead! I'm going to buy water testing stuff ASAP.
     
  8. FallenOwl

    FallenOwl Well Known Member Member

    After you get the water testing kit, test the water and post it here ;)
     
  9. el337

    el337 Fishlore Legend Member

    It's most likely a bacterial bloom which is common in new tanks.

    As for the algae, how long are your lights on?