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Results 1 to 8 of 8

Thread: what is this?

  1. Default what is this?

    0 Not allowed!
    i have new rocks i put in my tank and after the first day the rocks developed a clear gel? or film on them what is this? and is it bad?

  2. #2

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    0 Not allowed!
    First, Hello and welcome to AC.

    Are these rocks that you purchased or rocks you picked up somewhere from outside like a creek?

    You can boil your rocks to sterilize them and kill anything that might be living on them like things we cant see.

  3. Default

    0 Not allowed!
    i purchased them from the local fish store heres a picture
    Attached Images Attached Images

  4. #4


    0 Not allowed!
    Whatever it is, it dont look good! The yellow stuff looks like old growth, i always scrubed it off my rocks before i put em in a tank. Good luck...
    Life is tough, it's even tougher if you're stupid (John Wayne)
    If you're not angry, you are not paying attention (Ralph Nader)
    9 Tanks (2-29G QT) ranging from 150G to 10G for my 1/2 moon Beta

  5. Default

    0 Not allowed!
    i hope so

  6. #6


    0 Not allowed!
    It looks like the driftwood fungus shown in the picture in this thread
    Just...on a rock instead.
    120 gallon FW bowfront in progress

  7. #7


    0 Not allowed!
    +1 to crunchy. Its harmless to the fish, dont worry. If you have mollies or gouramis or a pleco, they might eat it for ya. Otherwise just keep scrubbing it off and eventually it stops growing. :) My female dwarf gourami loved it when i had it on my wood. Got herself fat off it.
    10gal Betta Tank - Skye the crowntail and Squiggles the deformed albino cory
    10gal Tank- Glofish
    75gal- Everything

  8. #8

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    0 Not allowed!
    +1 to ek,

    My old dwarf gourami loved picking at my driftwood fungus then along came a pleco and almost overnight the fungus was gone.

    It is harmless but pretty unsightly. I would advise on scrubbing and boiling the rocks incase it is something other than the fungus, seeing as it has appeared on rocks instead of wood
    My therapist says I need a bigger tank . . . . .

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