Hi, I hope you all are doing well. Today I noticed this line that starts and stops going down the left side of the vertical scene. I’m new to reefing, but I don’t see the same issue on the right-hand side of the tank’s vertical seam. Is there something to be worried about? Is it normal? It might’ve been there the whole time just never noticed it. I ran my finger down the inside of the sea in the water and it feels normal and it feels normal when I run my finger down the outside of the sea on the outside of the tank. Is there anything I can do to further inspect this? I appreciate any insights.
