Euro brace is an option, I think cables and L channel give the tank a more modern/industrial look. Not to mention much easier to obtain and cut material. Aluminum channels can be found at any hardware store...
Aluminum Angle Bar I usually reseal large tanks 6ft or larger, depending on the size tank they have different lengths and thickness. As for the cross braces...
Galvanized Steel Cable Wire Rope works well, again different gauges of wire and different lengths. There are kits you can buy but there is a section were they will cut the individual gauge and length for you. Stay away from the sealed
Stainless Steel Vinyl Coated Wire because its difficult to work with.
Joining plates are used to attach the cables and L angles together, again different sizes, shapes and thickness. I use
J-B Weld Professional to adhere the joining plates to the L angles. Anything over 3500 tensile strength, they have a quick weld that I have never tried but should work. I work on tanks in the garage so be check the proper temps when it can be applied. Then some generic black oxide, nickel or zinc tops (cant remember) non rust for the top of the plates. Purely aesthetics. Here are a few more photos. One of my own built tank using low iron glass. If this helps anyone give me thumbs up. Thanks