Stork, the eurobracing might add a tiny bit of security but it's going to be mainly dependant on the water level in the tank. Knowing that I would be running a wave box on my current tank, when I had it built I had them cut the slits in the overflow nearly an inch deeper than usual so that I would drop the water level in the tank by the same amount. I think you're just going to have to set up the tank and fill with FW from the hose, get it running, and see where the water level is. If you're too close to the top you'll need to look at dropping the water level somehow to allow for the wave action. Once you've got the water motion dialed in, then drain and fill with proper RO/DI water and salt.