Need Macro Algae IDs

[Smoker]

This covers an area less than 3 square inches. I didn't know the yellow stuff was there until seeing the photo. What is it? Top right, what is the burgandy ball plant called? Bottom right clump is lavender and about 1 square inch?

This is all growing on a very small live rock that has been in the (2-1/2g) tank for over 4 years. No algae elsewhere except a wee bit of GHA. The burgandy ball plant cluster type appears from time to time and is easy to remove. Is all this stuff bad? What causes particular types to grow? I've never seen these types in my other tanks.

 

[tektite]

The ball macro is called red grape, a type of botryocladia. Not sure on the other one, can you get a clearer pic?

 

[Smoker]

Thanks for the red grape ID.

The rounded clump has grown oblong to about 2" now. Sorry I can't get a better photo.

 

[whippetguy]

I think thay may be a clump of red bubble algae which is not always red. When I had it my tank it looked more dark purple with flakes of orange on it.