, consider the most frequent pros and cons.
Weight as you said, isn't a concern for you so we'll ignore that.
Strength: They will both "hold" the water but what about shipping. Glass will be more likely to break during shipping if your order one or have one built. But, this is a one time thing (maybe twice if you ever move). So, IMO
, frailty and strength aren't important factors.
Color: Newer glass tanks (as long as you don't get a very cheap tank) really aren't that bad any more. They used to have a very bad tint to them, but not soo much any more. But there is still a slight hue chagne. Go to a LFS
and take a white piece of paper with you. Hold it inside a couple of empty
tanks and see if the color change is that drastic to you. So the importance of color, will depend on your personal taste. This is an ongoing factor, every time you look at the tank it comes into play.
Scratches: When do scratches occur? cleaning, moving rocks, maintenance, KIDS! these are frequent factors. IMO
this is the single biggest con to an acrylic tank. If you have an active household, I can imagine frequent scratches, and even though they can be "Repaired" (when they're shallow scratches) I would imagine you'd get quite tired of fixing them after a short while. Any deep scratches could be there to stay, and you'd have to look at that every time you look at the tank.