What is THIS?

[Tdanza]

I'm fairly new to salt water tanks and have this growing on a couple of rocks? This one is the largest. By the way, I'm talking about the red tree thing. And also what is the green bubble like stuff next to it????
-Tanks about a yr old and doing well.
Thanks in advance!

 

[pugcrush]

Both are macroalgaes. The green one looks to be codium. The red might be a type of gracilaria.

 

[Tdanza]

Ok thanks. I have to research what that is exactly but are they good to have??? I actually thought the red might be kelp.

 

[mr fixit]

Not going to hurt anything they actually feed off excess nutrients in the tank n pods love to hide in them I had a small piece of dragons breath grow into big bushels I have to trim a lot but trade it for credit at my buddies fish store