Can I remove this

[Daddi0]

My 65 had a melted center brace. I emptied the tank put in two plastic "cutter sticks" with nylon bolts. seems to hold. here is a link to the type of plastic sticks I used.http://www.jorsonandcarlson.com/pro...plastic_cutting_sticks_for_paper_cutters.html
I have a friend that runs a print shop so I was able to get one for free.
Cheers! Mark

 

[timnem70]

Or... You could just leave it alone and put your aquascape on either side of it like two peninsulas with your lights over them, shadowing the middle and move forward.
All others have said is accurate that the brace stays or needs to he replaced. They made those old tanks with super think glass but unless you personally know the history of that thing it is a crap shoot.

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[Shamous113]

in the second set of pictures it shows the trim is not tight, the glass brace will be attached to the front and back panels with silicone and it's defiantly needed. you can remove the trim on the center brace but i think you'll find the edge of the glass hasn't been polished, leaving sharp edges exposed.

it is possible to change the center brace, but you do need a brace of some sort. I would recommend it be done by some one with experience. typically if you go to a narrower pc of glass you also have to increase the thickness. You'll have to check the numbers on the forces applied to reduce the risk of failure, a good structural engineer will have software that will make this easy.

To give you a idea of the forces applied years ago I had a 150 flat back hexagon tank that had a similar brace, the silicone joint on the front let go and both the front and back panels bow more then 3/8"

 

[sde1500]

It's 5 foot long does it need a center brace? If so please tell me how to add a much slimmer one.

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You do have a tendency to reiterate questions multiple times. The "please tell me" phrasing probably doesn't help. People like helping those who also try helping themselves a bit. Instead of always asking "tell me" an occasional "I looked up a few things and here are some questions I have to clarify the matter for me" would go a long way.

Any trimmed tank of a reasonable size uses bracing. My 65 gallon is braced. Your tank will certainly need to be braced. As to how? Can't help sorry. Not something I've done before. Here's a pic of how my center brace looks.

 

[tweetyfish]

in the second set of pictures it shows the trim is not tight, the glass brace will be attached to the front and back panels with silicone and it's defiantly needed. you can remove the trim on the center brace but i think you'll find the edge of the glass hasn't been polished, leaving sharp edges exposed.

it is possible to change the center brace, but you do need a brace of some sort. I would recommend it be done by some one with experience. typically if you go to a narrower pc of glass you also have to increase the thickness. You'll have to check the numbers on the forces applied to reduce the risk of failure, a good structural engineer will have software that will make this easy.

To give you a idea of the forces applied years ago I had a 150 flat back hexagon tank that had a similar brace, the silicone joint on the front let go and both the front and back panels bow more then 3/8"

Leave the center glass in place and remove the plastic trim on each side. They were installed for glass tops to sit in. The glass edges are polished. I have the same tank in a 180 gallon version. Oceanic made great tanks back in the day.