Well i looked in my tank this morning to find a tiny plant growing from the gravel , i have no idea were its come from as i don't have any real plants in my tank , if i left it to grow would it harm my fish ?
It might have been a runner from one of your other plants, if you have other plants. If you have other plants, just search for reproductive habits and it will tell you if that was a runner or something else.
Well i took it out becouse i don't know were it has come from , i only have plastic plants and i am planning on getting some real plants becouse i was told they put oxygen in the tank , it had a thin stem with 2 small leaves on the top .
ahhh haha that sounds like the shoot of every other plant, no offense tho. you've have to get lights otherwise they'd totally wither out on you unless u get those hardy ones