Acrylic or Glass Tanks

[viperfish]

I had an acrylic nano and it seemed like I couldn't look at the thing without putting a scratch on it. I don't know if there are different grades of acrylic but this one was terrible. If the LR touches the glass or a pebble gets caught in the magnet the surface is toast. I see people spending huge amounts of money for very large tanks and I would go nuts worrying about damaging it.