Just recently did a 15% water change on a 90 gallon. 3 days later I think Dino algae appeared. I’ve researched blackouts and possible hydrogen peroxide treatment. There is some particles on the top of the substrate I want to siphon off just for appearance sake. Just the surface. Would this make the situation worse? I was also going to add a lawnmower blenny to try and help with the algae on the live rocks and possibly a watchman to get a maintenance crew started. I really appreciate any and all help. I’m new.