Yeah, I did the tank up, and not sure how that panel moved, but it's back in place now and curing.
I would think that custom tank places test for water tightness, factories probably only test one out of 100. I will say that silicone is pretty damn strong, getting a tank apart is almost as hard as as putting one together. I'm going to leave the clamps on for 2 days, maybe I took them off too soon last time, who knows. Rock is in the sump with a heater and a circ pump, should be fine in there, anything that had started to grow should be okay, water is in the drums, so should be back in business by the weekend.