I've had a java fern in my low light goldfish tank for about five months. I'm waiting for a baby plant to grow so I can put it in my soon to be betta tank. The fern has grown in size, I can notice more leaves coming off it and such. On the end of one of the leaves, theres this brown thing.. not sure what it is, but its growing off the leaf. It is shaped like a "v" and is growing outward.
Any ideas?
Any ideas?