hey, does anyone know what this is? It appears and disappears whenever, it is bright orange and kind of cool. Before today we thought it was some sort of coral/mushroom but today it was on the glass and it's a snail! but no shell?
If you know what it is, is it harmful to fish or corals etc?
Thanks!
If you know what it is, is it harmful to fish or corals etc?
Thanks!
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