I agree! I really thought they'd check it before sending it out to me too and I am equally shocked they didn't... but the dealer was being a jerk to me from the very start, which is why I was dealing with Fluval directly. Fluval actually had to intervene on my behalf to "reach an agreement" with the dealer to even get them to send me a replacement. And this was after 3 months of me convincing them (Fluval) there was an issue. Which they agreed with me at first, and then back peddled on when the dealer didn't want to honor their exchange policy (this is when I contacted a consumer affairs lawyer and rattled their cage a little and they finally reached an agreement) like I said- pulling teeth. The whole experience has just been.... less than stellar. And like you said, put me off towards going back to them. It really is unfortunate because before this experience I had chosen Fluval because I had heard such good things about them
I actually do have aquarium silicone... but I thought you couldn't do that without a complete reseal because the old silicone would repel the new stuff? Or would it work in this case? (I actually know like 0% about silicone lol)