Brown Slime in DWC

Hello guys,

I use Dutch Master Gold Nutrients which are fairly clean. Last week I added Vegan Booster by GH and I started to notice brown slime on the side of my buckets. Is it bad to have this brown slime? I flush my water every 2 weeks and its only been 5 days since it got this amount of brown shit. Should I use some h202? Any other additive which can eliminate this?

Roots

Week 5 Veg. About to flip in couple of days.

i would stop using that shit and stick to your base nutrients in undercurrent. dutch master makes zone which seemed to work well when i used it. h202 is cheaper and has worked just as well for me too.