So I'm a little lost on this I've gathered all my rock bought the aquarium safe silicone and somewhat figured out how I want the archway to look but I'm a little lost on how to keep the archway up while it dries! This set up will be going in a 55 gal long and another in a 45 gal show tank any help or a walk through from some one who's done this before would be really great! I can post pix too if needed.


