is my overflow an alright place to allow algae to grow? I can count 30 pods crawling all around on the walls
Shouldn’t be any problem as long as it doesn’t hamper the flow into the sump. also, I’m sure you’ll cut some out when it overgrown.
I will definitely cut some out as it grows. I just noticed a decent amount of growth from the overhang of my lighting and was thinking I could maximize growth with a light vertical
What kind of light should I use?
You definitely can. That looks like hair algae though.