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Thread: Sand or gravel

  1. #1
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    melita's Avatar
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    Cool Sand or gravel

    I have been having a huge problem with brown algae in my 90 gallon discus tank and I think the problem may be silica sand plus white-garnet stones that I am using in my tank . I did not experience that issue. When I used The black Titanium moon sand in same tank.
    Wondering if any one else may have had this problem ?
    Now I don't know what to try, the moon sand is black and will darken my pigeon discus I do have a gravel but it is not very fine for planting .
    Any suggestions for a light substrate other that silica sand that will let. Me grow some plants. ?

  2. #2
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    Illusionist's Avatar
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    I'm pretty sure the algae feeds off the new silica.. could buy actual aquarium sand of some sort, or even small sized white coloured gravel?

    Sent from my SGH-I337M using Tapatalk

  3. #3
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    I am temped to put the. Moon sand back into tank the regardless of peppering . And remove the stones but it is a lot of moving around and disturbing discus if it doesn't work out .

  4. #4
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    If the tank is planted there is a guy selling buckets of ada aquasoil which I think is the same as flourite. Really good stuff to keep the water soft, plants healthy and rooted and it is a great bed for good bacterial growth.

  5. #5
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    Give it time,the silica dust will get washed out with a bit of time.They are diatoms(brown algae) and not harmful just unsightly.Fine gravel or pea stone is great for a planted tank,even tho there are more substrates on the market for growing plants they might not be the best for discus.I have never had any issues using pea stone for a planted tank.Sandy or really fine grains get too compacted and not great for all plants.Plus you'll get more anaerobic areas with a compact substrate,not something you really want in a discus tank.They have white fine grain silica gravel at Shaw Brick.
    I like discus cause discus like me.


  6. #6
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    Do you have good water circulation. I found that if the water was not moving in all areas algae would build up in the corners. A power head and less hours on the lights will help. Just my 2 cents

  7. #7
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    What kind of water changes are done this tank?

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