Ok class, today lesson is as follows...
When you try to sandwich together a 3"x60" brace for the top of your aquarium you will find out about 20 seconds in that the 3ml syringe applicator that you used for the relatively small seams you did up to this point is absolutely not going to cut it and you have 0 chance of getting the seam filled in time . I probably should have just ripped them apart immediately, cleaned them up and tried again when I had a larger applicator but that didn't occur to me until it was much too late. I was sooo mad by the time I was done with it but its just bracing no one will see and I learned a valuable lesson that will never be repeated again lol