I picked up a pretty small piece from LFS for cheap. In a matter of months it has doubled in size. It has started growing up the back tank glass in the back and you can see in the pic where the edges start to round it's growing down? I mounted it with a magnet to the back glass thinking it was a chalice so it should grow out and up? Am I missing something? Too much light maybe? Sorry for the crappy iPhone pic I didn't feel like digging out the dlsr



