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spongy

  1. Unknown Growth

    Beginner Saltwater Aquariums
    Hey there, i am new to this forum and was wondering if anyone can help me find out what is growing in my tank. It is red and stands kind of like a base of a mushroom without the head, it is spongy also. i didnt have any mushrooms or sponges in the tank...and these appeared to grow these last...
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