keep the glass brace and remove the trim. finish the edges then fill it all the way to the very top. double check it for how square it is. you can do this by either using a level or a piece of string. take the string and put it at the very outer tip of one side and the very outer tip at the other size and let the line sit on top of the tank glass and see if there are any visible arches/bows in the glass. the string will help you picture a straight line compared to one with a load on it. if it doesnt bow at all then thats great! if it does then i would put the trim back on.
if it does not bow consider moving the glass brace. if you do then test it for the same thing. if it still doesnt bow then you should be good to go. if it does bow then go back and resilicone the glass piece back and go from there.
i would call a company who makes rimless tanks and ask them about a tank of your size. dont say you already have a tank just say you are interested in say a 48x24x24 tank and you were just wondering how thick the glass on that would have to be to keep it rimless.
that might give you a little more piece of mind if they say oh we can do it out of 1/4" non tempered compared to your thinking of example 1/2" tempered ya know.
Great advise on testing the tank, thanks. I emailed Great Lakes Aquariums before I created this thread and asked about glass thickness for their 48x18x24 rimless tanks. They use 3/8" glass. So, I'm less concerned about the glass and more concerned about the silicone. I need to go measure the trim as I think this may influence peoples thoughts.
Originally Posted by jolson10450
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