DIY sump help

[tweeter]

I'm starting up a 125 6 ft tank, and my husband is going to build the sump for me. We have some 1/4" plexiglass that he is going to use. My question is, what is the best way to put it together, with what materials, and where do you get them? Would I need to purchase aquarium silicone, or can I use some other kind? Do we glue it, or solder it with acrylic?
Any other suggestions would be welcomed! Thanks

 

[virtual reality]

Almost every place that sells acrylics, has the weld on "glue" you need for it. It's a solvent that welds the seems together. I use Weld on 3 myself.

 

[virtual reality]

Looks like this:

http://www.delviesplastics.com/c/Acrylic_Plexiglass_Solvent_Cements.html

 

[marlinmon]

What I use:
https://www.amazon.com/Weld-Acrylic...8&qid=1548637424&sr=8-2&keywords=acrylic+glue

 

[virtual reality]

You might also want to check this out.

https://www.advancedaquarist.com/2007/7/diy

 

[dugthefish]

Personally, I would much rather configure a 40/55/75 gallon tank with custom baffles than build one from scratch. Imo, it would be difficult to match the exterior integrity of the seals.

 

[tweeter]

Thanks everyone for the help!!