If the frame is plastic you can glue a new plastic brace right to it, and with a canopy you won't see the repair job.
BUT you're not going to get the plastic off in one piece. I'd give you one chance in 10 of doing it, and then it'll be distorted.
Just cut it all away, sit the finished tank on Styrofoam, and add glass braces.
OR buy new frames, but there goes the cost savings you imagine.
This tank broke because the brace broke. The brace is the weak link in the design.
I have two 4' tanks designed this way. They are tempered glass and I hate them
BUT you're not going to get the plastic off in one piece. I'd give you one chance in 10 of doing it, and then it'll be distorted.
Just cut it all away, sit the finished tank on Styrofoam, and add glass braces.
OR buy new frames, but there goes the cost savings you imagine.
This tank broke because the brace broke. The brace is the weak link in the design.
I have two 4' tanks designed this way. They are tempered glass and I hate them