Hi everybody. I've just bought my first aquarium and know very little about keeping fish. I was hoping to put the aquarium on some shelves that we had built in. The shelving should be sturdy enough to take the weight of the aquarium (200kg), but one of the salesmen at the pet store was warning us that aquariums this heavy are only safe on aquarium shelves that you buy. He was explaining that it wasn't the weight that we should worry about, but the fact that the shelves have to be extremely flat or else the glass may crack. Is that true? The shelves that we had are just made of mdf, so there will always be minute dents on the surface. Is that really an issue? I can't find any information supporting this on the internet but I don't want to fill this aquarium and start my new venture to have it all fall to pieces with time. If anyone has any advice for me I'd really appreciate it! Thanks!!