I was expecting something from one of the tank manufacturers as I expected the weight distribution to be quite important.
Don't be too sure !
We have one of these AquaOne cabinets that came with the matching 40cm Aquaone tank.
The sides look robust and strong as you would expect for a big name aquarium supplier, but in fact each side is made up of two sheets of 3mm hardboard with a paper type of honeycomb center , so basically 60lts of water, sand and rock etc just suported by them !
Even before filling the tank we had to put a solid piece of timber across the rear to stop it moving sideways , as you will be well advised to with most pieces of lightweight modern funiture.
Plenty more choice for such cabinets at Ikea or Argos, but do make sure they are easy to reinforce as needed.