[~RuSh~]

Thanks for your experience and advice. I don't see the acrylic expanding enough to crack the tank. The baffles are cut about a blade width short on each side, so around an 1/8 inch and I just don't see it expanding that much personally.

I am a little worried about the silicone peeling away from the baffles which is why i beefed up the silicone around the edges of the first and last baffles. I am however going to move forward with these baffles. I recognize your advice and appreciate it and have weighed it in my decision. I will keep you all updated for the benefit of those less experienced if the baffles do fail. Thanks.