:help:Hi, I am new to saltwater and we decided to buy 150 gallon tank that was already established for 600.00. The people did not have time to take care of it so needless to say it was dirty when we got it. I have got everything back in order and stuff started growing and was hoping someone could help me identify. First looks like a flower and will suck back into the rock when bothered, another is like a round ball that is white and has thorns, and other is pink thing growing.

