Spider pinkish Algae ID

[tgray9937]

I am trying to figure out what this algae is in my dwarf seahorse only tank. It is on fake plants, glass, and sponge filter.

 

[Timfish]

It's not an algae. My mind is drawing a blank right now (need. more. coffee.) but it's an invertabrate of some kind. Maybe someone is thinking clearer than me and can name it.