My Marineland 60g heartland was bought new 4 years ago. I don't remember how the seams were when I bought the tank. I was about to start the process of converting this tank into saltwater when I noticed the seams. I first thought it was nerite snail eggs but upon closer inspection, I see bubbles all over the place in the seams. I provided two pics that show what it looks like inside the tank and two pics from outside the tank. I am starting to freak out. Does this look like it's time for a new tank?