My green hairy mushroom is spliting. see pics

my green hairy mushroom is the first coral i put in my tank. I initially attached it to a piece of base rock. however, i have moved it to a smaller piece of rock a couple of days ago so that i can move it around as i please. i had to place it in a low flow area so that it would attach itself. i went to move it back to its original position earlier and noticed that it has began to split itself, so i just left it alone.
why is it doing this? because it is happy or because it feels threatened?

thanks for your help
i will add more pics as it continues to change
JP

 

thats awesome can you cut a mushroom to start it spplitting i herd that around some where cant say how much truth is in it

 

i belive its happy i mean its reporducing making a larger colony its good

 

i am not sure about cutting to start splitting, but i know that you can cut mushrooms and have two. the green hairys become a gel pretty fast though. i thought about cutting mine but didnt want it to "melt"

 

Congrats! It means it is happy! I am not posting this pic to "show you up" but want you to see the resuls of 1 fuzzy I have in the 14 Biocube. Enjoy!

 

cool on the split, it's definitely spreading to make a little colony. I used to have a hairy mushroom rock and that thing multiplied so nicely and quickly, I'm sure you'll have a lot more soon.

 

Thanks for showing me up Uncle Jed. You totally just stole my show. haha, im just kidding. your mushrooms and your aquarium look amazing. thank you for showing me!!! hopefully soon mine will look like yours!!!

 

Very nice Indiana Boy! Congrats. It must be time for shrooms to split. My Ric is also going through a split right now.

 

Yes, you can literally cut them in half with a razor blade etc. A few weeks later, you'll have two shroomies!

 

It is a very pretty mushroom, love the intense green.

Are you feeding it at all and if so what ?