aneirobic substrate :(

Discussion in 'Substrates' started by aaronnorth, 18 Aug 2008.

  1. aaronnorth

    aaronnorth Member

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    My playsand substrate has gone aneirobic :crazy: is there anthing i can do? I have ordered some MTS to ty and help.

    Thanks, aaron (it is my 60l)
     
  2. Mark Evans

    Mark Evans Expert

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    whats that mean? :oops:
     
  3. aaronnorth

    aaronnorth Member

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    It is when not enough oxygen is in the substrate (aeirobic = oxygen) it creates hydrogen suphide (i think - know it has sulphur it as that is what causes the egg smell)
     
  4. JamesM

    JamesM Member

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    Anaerobic?


    I had the same problem with playsand only. Mix some gravel into it, or more coarse sand.
     
  5. aaronnorth

    aaronnorth Member

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    yes thats the one lol, i only have it where there is no plants/ gravel. I keep stirring it weekly to try and make sure it doesnt build up to much. Is that the only way?
     
  6. JamesM

    JamesM Member

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    Its so fine it tends to compact way too much ime. Putting some gravel under it will help. Yes the sand will fall through to the base, but the stones stop it from compacting.
     
  7. Mark Evans

    Mark Evans Expert

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    ahh, ok. not good then :?
     
  8. aaronnorth

    aaronnorth Member

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    not the best option, i have JBL aquabasis underneath, it will create a big mess. I suppose it can be a good reason to rescape :lol:

    Is aquasoil like gravel?
     
  9. JamesM

    JamesM Member

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    The wife loves the look of sand so we've also done it in the 4ft tank. I kept most of the gravel in at the back and just covered it. No problems there, but the front started to become a problem, so having a mad moment I mixed everything up and added JBL AB. It created a hell of a mess, but it did settle. And no problems since, and it actually looks a lot better. I'm still desperate to change it though :(

    AS is like clay pellets I think. Azoo make a knock off version which I got cheap from AE.
     
  10. Mark Evans

    Mark Evans Expert

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    yes a little like gravel.lighter in weight. great to use. planting etc.

    arghh go on...get some :rolleyes: you know you want to :lol:
     
  11. aaronnorth

    aaronnorth Member

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    The reason i ask is because i have never had anerobic pockets in gravel.
     
  12. Mark Evans

    Mark Evans Expert

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    i dont think ive seen your 4 ft'er james you got an image i can see?

    mark
     
  13. JamesM

    JamesM Member

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    Sorry Mark, the 4ft is a mess. A real mess :lol: Its only ever had swords and densa in it until recently - Clive sent me half a kilo of crypts and other plants :lol: I'm getting rid of it in the new year and starting fresh with a 3x2x2' opti-white.

    I did look for some pics to try and show the substrate...

    DSCF1606.gif

    DSCF1626.gif

    DSCF1671.gif

    The topping there is mostly JBL Aquabasis.
     
  14. Mark Evans

    Mark Evans Expert

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    cool, look forward to a journal on your opti white. have you seen an opti whit tank in the flesh?
    if no, prepare yourself ;)

    mark
     
  15. JamesM

    JamesM Member

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    Yeah, I went to a glass cutters place the other day and saw a sample. I felt like knocking one out right there tbh :lol:
     
  16. Mark Evans

    Mark Evans Expert

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  17. Wolfenrook

    Wolfenrook Member

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    Are you sure that it has definitely gone anaerobic? As in smell of rotten eggs/pH swings for no other apparent reason? I ask as you sometimes get gas bubble forming even in a healthy substrate, sometimes they are nitrogen/CO2 bubbles given off during aerobic bacterial activity and are nothing to worry about, you just see them more in finer substrates as they trap them more.

    Ade
     
  18. aaronnorth

    aaronnorth Member

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    It does smell like eggs, no pH swings and it is only where there are no plants.
     
  19. Ed Seeley

    Ed Seeley Member

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    I've got sand in all my tanks and have never had any problem at all. I don't stir up the sand but simply vacuum any debris off the surface. I've have never seen any gas bubbles coming out of the substrate at all and not all my tanks are planted so it can't be roots keeping the substrate oxygenated. I think that unless the sand caps with high levels of organics (or carbonates perhaps?) and seals up the lower levels then surely there would be some water movement throughout the substrate. I do use thinner sand amounts on unplanted tanks, but still an inch or so usually.
     
  20. aaronnorth

    aaronnorth Member

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    this is quite deep, 3" (2" sand and 1" of JBL AB) It is also turning black :(
     

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