Whats This Growing Over My Rocks?

[woodyofcastle]

the live rock has only been in the tank for 4 days and it has almost doubled in size, there are about 6 clumps on 1 piece of rock

 

[nanocubeking]

If its growing on the rock and live its probably a coral or sponge.

 

[woodyofcastle]

If its growing on the rock and live its probably a coral or sponge.

Thanks for the quick reply nanocubeking, i just hope its good and not bad

If its growing on the rock and live its probably a coral or sponge.

yesterday the hole that is small was the size of the larger hole, if you get what i mean

 

[nanocubeking]

Give us progression pics to determine if its growing.

 

[SkiFletch]

Prolly a sponge, corals usually don't grow that fast. Might be time for the blowtorch if it's really bad?