we got these monster pine cones from cali about 10 years ago. theyve been sitting out drying since then. theyre crazy heavy, so im sure they would sink, do you think theyd be safe in an aquarium? if so theyd look ballin
brianp;1859919; said:I seem to remember from Botany class (many years ago), that coniferous trees secrete a resinous substance which acts as an herbicide, preventing seedlings from taking root around it. I don't know for sure about the cones, but I would guess that they also contain this substance.