So yesterday I made the 3 hour trip to and from Des Moines to pick up a 60 gallon Cell Cast Acrylic tank. It has a single centered overflow in the back. The acrylic itself has very few scratches but the kicker is, the lady hadn't set it up since she bought it. She said she thought it would need some silicone around one of the corners but was not sure... I test filled it yesterday and found out that about an 8 inch section in the front panel wasn't cemented . Does anyone have any suggestions on how i should go about fixing this? i had thought about using a lower weld-on in the seam and then just going around all the seams with something higher...