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Most will tell you that you cannot successfully glue acrylic to glass due to the non-adhesion of silicone and acrylic.
That being said, I've siliconed acrylic baffles into my sump with no problems for the past 5 years.
You need to use at least a 1/4" acrylic piece, this will give the baffle some rigid form and use aquarium silicone. |