My tank smells...

Discussion in 'General Planted Tank Discussions' started by TDI-line, 9 Jul 2008.

  1. TDI-line

    TDI-line Member

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    1,535
    Location:
    Yaxley, Peterborough
    Is it normal for a tank to have a smelly odour, or as my other half says, "that tank stinks!"

    The tank is 720 litres,i change about a 1/3 of the water every 3/4 weeks. It does have heating cables with Dennerle deponit mix, and 2-3mm gravel on top. The depth of the substrate is around 10cm. Also T5's and CO2 etc.

    Any ideas?
     
  2. aaronnorth

    aaronnorth Member

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    any rotting fish?

    I know carbon can take away the smell.
     
  3. Matt Holbrook-Bull

    Matt Holbrook-Bull Founder

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    Dorset, UK
    eggy smell?
     
  4. spaldingaquatics

    spaldingaquatics Member

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    Spalding, S.Lincs
    My 230l was filtered with carbon in my fluval 305 for the last year and the water had no smell at all, smelt quite nice actually! :D

    Since adding plants I took the carbon out because I was using ferts and didn't want the carbon to remove anything it shouldn't.

    That was a week ago and now the water 'stinks', I just thought it was the ferts I've been adding and it was how all planted tanks smelt, but obviously not!
     
  5. aaronnorth

    aaronnorth Member

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    my tanks dont smell and i dont use carbon, it has to be something else, what is the smell like?
     
  6. spaldingaquatics

    spaldingaquatics Member

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    161
    Location:
    Spalding, S.Lincs
    mine smells like our kitchen bin after I've filled it with used cat litter. There's no rotting plants, fish ect I clean the gravel everyday, waters changed 25% a week. Was fine when the carbon was in. Just not now :arghh:
     
  7. ulster exile

    ulster exile Member

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    353
    Location:
    Birmingham, UK
    Didn't want to say, but it's not just the tank... ;)

    (j/k!)

    My tank has it's own smell, but I wouldn't say it stinks or is really strong - is it just a matter of perspective perhaps?
     
  8. TDI-line

    TDI-line Member

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    I don't think so, fish stock is quite low for this size, and my shrimp army soon swarm over any dead matter, ie dead tetra. :rolleyes:
     
  9. TDI-line

    TDI-line Member

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    Location:
    Yaxley, Peterborough

    Yes, could be an eggy / dust bin smell.


    I was thinking about removing the deponit mix, heating cables and replacing with ADA amazonia, and not having such a thick substrate.

    What do you think?

    Could it be the deponit mix going anaerobic, or the 100's of trumpet snails digging...
     
  10. TDI-line

    TDI-line Member

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    Location:
    Yaxley, Peterborough

    Hey, maybe it's our local water. :D
     
  11. Dan Crawford

    Dan Crawford Founder Staff Member

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    Daventry, Northants
    My fist thought was anearobic, try poking a pair of tweezers upside down through out the gravel substrate and watch for big gassy, smelly bubbles coming up, if you get a lot of them like over 3 on a tank your size then i'd say that would be the cause. I would have thought that with the amount of root growth you have in your tank that there would be no way you could get any dead spots in the gravel but it's worth a go.
    My next thought would be to do more water changes but i can imagine that WCs are a right old task on your beast of a tank LOL.
     
  12. AndyTaylor

    AndyTaylor Member

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    Any blue/green slimy looking stuff? A healthy tank shouldn't smell strongly, in my experience.
     
  13. LondonDragon

    LondonDragon Administrator Staff Member

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    I had mine for a long time and it never smelled! might be the gravel! Had a bunch of Trumpets in there if it is
     
  14. spaldingaquatics

    spaldingaquatics Member

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    161
    Location:
    Spalding, S.Lincs

    :) :) Wouldn't suprise me! tell you what mate with all the ferts draining off the fields into our water supply we shouldn't even need to add anything! :lol:
    Bottle our water and sell it on the forum £20 a ltr, what you reckon? 8)

    BTW when my clown loach dig for food sometimes a big bubble will shoot for freedom, is that what was ment with the tweezers?
     
  15. TDI-line

    TDI-line Member

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    1,535
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    Yaxley, Peterborough
    Ok Dan i put the tweezers in, and i did get a few little bubbles, probably around 2-5 each time. I put the tweezers right through the gravel and deponit mix, so about 10cm all the way to the bottom. So is it rip out time. :( . Maybe :D .

    Andy, i have had the odd bit of blue/green algae, but not at the moment. I do have green diaom algae on the glass, but scrape this off WC time.

    LD, i have probably 100's of trumpet snails breeding in there, some are over 2 cm's too.

    I'm dosing with TPN+.

    One thing i have noticed today, that the tank smells more in the evening, once the lights have been on for a few hours.

    SA, good idea about the bottled water. Howabout 50/50 split. :D
     
  16. Dan Crawford

    Dan Crawford Founder Staff Member

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    He he, a rip out might be a bit drastic LOL if you try and keep on top of the anaerobic spots then you maybe ok, although if you wanna rip the tank apart then i know a good holiday home for aquatic plants :lol:
     
  17. TDI-line

    TDI-line Member

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    Yeah, George's house. He he. :D :D :D
     
  18. spaldingaquatics

    spaldingaquatics Member

    Messages:
    161
    Location:
    Spalding, S.Lincs
    60/40 to you, sounds like your's is more contaminated than mine ;)
     
  19. TDI-line

    TDI-line Member

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    Location:
    Yaxley, Peterborough
    Dan, how would you know what spots are anearobic?
     
  20. Dan Crawford

    Dan Crawford Founder Staff Member

    Messages:
    3,266
    Location:
    Daventry, Northants
    G's house, pfffft LOL

    You don't know where the spots are unless you can see them in a light coloured substrate like sand, it starts to go black. Give it a couple of days of poking around to unsettle the bubbles then the sunstrate will fill the holes where the bubble used to be and in theory they won't come back. Isn't one of the purposes of a heater cable to prevent this? ;) moving warm currents through the substrate blah blah blah :)
     

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