What is this?..and how do I keep it alive?

[Brad]

Orange stuff (coraline?) and stick-like stuff.

1) What is it?
2) Does it want light?
3) Does it need feeding?

 

[Anemoneman]

1) What is it?

Both are coraline algae. The orange stuff likes lower light. The sticks grow in ideal conditions and may or may not thrive.

3) Does it need feeding?

No other than keeping Ca high & Alk levels balanced.

 

[Brad]

Update...

This has since mostly disappeared.