Refugium growing in my overflow

[nhelw1]

Heyya guys
I have noticed in the recent weeks due to some lighting changes refuguim has started growing rapidly I'm my overflow. Strangely it's not growing on any LR or coral but in its going nuts in the overflow.

I don't have any in my sump. Should I let it go and just keep it tame or get rid of it? Sorry about the blue pics whites just started fading in

 

[Sniperhank]

Algae will grow where it is easiest for it to grow. It grows in my HOB overflow too. This is because it is close to my lighting and has a quick water flow through it. Similar to why an algae turf scrubber is effective...just quite a pain when it shows up here. I clean mine out with the toothbrush I use on my tank.