Hi...I have recently bought a couple of corals for my tank.One of them when open looks like a cauliflour when out and like a trumpet when it goes in...not too sure what it is ....if anyone knows would be greatful of the name....The bottom of it (rock bit) is actually split in 2 as is the head of the coral........it is only joined by the middle bit...does anyone know if i am able to split this into 2 and the best way of doing it as i think it will do better as 2 pieces...thx