The 2 braces that go across my 220 gallon tank that are used to hold the glass/acrylic sheets have snapped. One snapped in the middle due to a past accident and now the other snapped right at the edge of the aquarium wall unexpected. Can you purchase a new plastic bracket that goes the whole way around the tank for tanks or will I have to build something? Impossible to glue or try and screw something into it. Anyone ever have a similar problem? Thanks guys!