Something on polyps

[jmatt]

I am simultaneously having a small aptasia issue and flatworms. Now this zoa is reluctant to open. What are the creatures(?) on the polyp necks? On the left, is that aptasia attached to the zoa itself? Any idea what the white spots are scattered about the other necks?

I may just toss the whole piece to be sure.

 

[jmatt]

Not ten minutes later... okay, what the heck are these? Saw the growing among zoas. They are hard and were firmly attached.

 

[vetteguy53081]

Not ten minutes later... okay, what the heck are these? Saw the growing among zoas. They are hard and were firmly attached.

Top are spirobid worms which feed on algae and green thing is velonia also known as bubble algae. Get rid of green thing and the spirobids , pick off with tweezers on frag in a container of tank water