Glass doesn't scratch as easily (imo). Glass is easier to get rid of that disgusting green spot algae on it as well. No doubt acrylic has good qualities too I just don't use it
i prefer glass to acrylic, as william said i'd imagine that cleaning algea off it
would be a problem, as acrylic is very easy to scratch, my sister has a
2ft acrylic tank and it is starting to go a horrid yellowish colour,