Came across a good deal on an Innovative Marine 30L. It has a pretty large chunk missing on the top right corner. Seller said he got it with the chunk missing and has had it set up for over a year with no leaks and no spreading. Would probably fill with clear epoxy or silicone. Do y'all think this would be cause for structural concern or no since its at the top of the tank? Sorry if this is a repeat thread, I hadn't seen any threads with a chunk missing as large as this one.
Photos here: https://photos.app.goo.gl/upqEv81ByKCnzHoPA
Photos here: https://photos.app.goo.gl/upqEv81ByKCnzHoPA