I would greatly appreciate your help in identifying whether this is a scratch or a crack, and what to do in the case that it is a crack? It is on the outer bottom pane, and can feel it with my nail. The interior part of the pane is completely unaffected.
It is a new aquarium not filled with water yet however, a refund is not a possibility, so do I need to order a new one or will this not be a problem?
Tank characteristics: 10mm glass, 80cmx45cmx40cm 144l
Please, any help you may be able to provide would be greatly appreciated.