Weird algae in refugium

[Merdfrog]

After coming back from vacation my refugium is filled with this weird slimy algae. None of the chaeto is left. Also the protein skimmer is filled with same algae. Has anyone seen this and/or know what it is?

 

[Lavey29]

Better there then in the tank. Do you have chaeto?

 

[Merdfrog]

Better there then in the tank. Do you have chaeto?

Barely any. I scraped some off of the rocks in the sump and threw it on the refugium but I will try to order more soon

 

[Lavey29]

Barely any. I scraped some off of the rocks in the sump and threw it on the refugium but I will try to order more soon

Well if you have no macroalgae in your fuge then nuisance algae is sure to grow there under light.