DT Substrate depth

Discussion in 'General Discussions and Advice' started by Pugsly, 9 Nov 2009.

  1. Pugsly

    Pugsly

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    hi all,

    My DT substrate is a mixture of playsand and sea sand and is currently averaging about 2cm deep.

    What is the best depth to have you DT substrate?
     
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  3. RiaanP

    RiaanP Moderator

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    2cm is OK.
     
  4. Pugsly

    Pugsly Thread Starter

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    deeper say 5cm not better? if its deeper will it not aid like a DSB?
     
  5. Sentari

    Sentari

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    Yep it will aid as a DSB. From what ive read this starts happening at 7cm.

    Mine is 2cm and i have no problems. I would personally leave it at 2cm.
     
  6. Tobes

    Tobes Retired Moderator

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    To use it just for substrate then 2cm is OK,

    to use as a DSB then 12 - 15cm will be best and also remember to never disturb or tumble the sand too much in this case, especially deep down as it will release the sulfer and poison the water when mature (the black anearobic areas)

    Putting live rock on top of the DSB will also minimise the surface area - but less is better than nothing if you don't have a sump to keep a DSB.
     
  7. RiaanP

    RiaanP Moderator

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    DSB (DEEP sand bed)
    If it is in tank you cannot have sand sifting Gobies or sea stars or anything that clean the sand.

    In tank 2cm is 100%. Ensure that rocks are standing on the base glass, and it cannot be tunneled and dugged out underneath. Easier with shallow display sand compared to deep sand.
     
  8. viper357

    viper357 Admin MASA Contributor

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    Yip, as the guys have said, 2 to 3 cm for substrate in the tank, or 10 to 12cm's for a DSB, anything in-between is not performing any beneficial function for the tank.
     
  9. Pugsly

    Pugsly Thread Starter

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    ok, cool thanks guys
     
  10. dallasg

    dallasg Moderator MASA Contributor

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    mine is about 5-6cm varying, but i have a sand sifting star and i like to see it make shapes from the powerheads
     
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