What is this?

[Kmcmjmtm]

Is this aptasia?
What are the shiny looking balls?

 

[whiteshark]

Looks like a couple aiptasia. The balls look like bubble algae covered with some hair algae or diatoms or something.

 

[explorer07]

Yhea thats a whole lota nasty. But its what he said.

 

[00101]

yeah aiptasia or similar in the back and a bunch of algae in the front. I'd get on clearing that if at all possible.

 

[wcarterh]

Looks possibly like aipstasia. Touch it and see if it retracts. Also bubble algae. With that much bubble algae, you may have a nutrient (phosphate) issue.