Not a happy camper this am. My lights turn on at 9 am. I was in my den, where the tank is, and just before the lights turn on I notice the water level is between 1/8 to 1/4 below my canopy line. My skimmer filled to nearly the top and the skimmate wasn't coffee like it normally is. I'm baffled. The return pump was barely audible. Everything looked normal except for the water line. 5 minutes later the lights turn on. Still trying to find something abnormal. Nothing. Then I see what happened. Apparently a snail made its way in the overflow box. It wedged between the outer box and the inner box and split the seam so the water was entering from the split as much as the overflow teeth. Initial panic set it. How do I repairs the box without emptying the tank and bonding seam? Luckily the seam only split about a foot and the rockwork stopped it from splitting further. I cut a piece of acrylic and ran Weldon around the edges and put it over the overflow box. It's about 2" wide so it serves a little bit as a small barrier as well. I hope this works!
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