I would go for Glass ... Acrylic (imo
) is one of these new ideas they've brought out to make money (trust me ... all the major companies couldn't care less about the reliability of an aquarium ... if its money-in-the-till, they'll sell it!) and it has many disadvantages including the main disad. of bad scratching - which you do not get from glass... i mean ok, its lighter, but how often do you decide to move a 140g aquarium once its set up? and what RELIABLE evidence is there to say its stronger .. because the suppliers or even the person working at the lfs
says so !?
glass has always been used ... before this day of age where all anyone cares about is money, it's up to you of course, but i would go for glass