Glass or acrylic?

I'm not sure. Mine's acrylic. It helps with insulation, and I like that it is more durable.

I’d say acrylic for saltwater tanks since I’m not sure how well silicone will hold up over time, and glass also limits you to how big you can go with weight limits and glass thickness requirements.

Acrylic tanks are lighter than glass. you can do whatever you want with it, and it's easy to clean and flip. The durability it gives is way better than having glass tanks

I've never had a glass tank. Is there anything to like about them?

Durability is the reason why I tend to choose acrylic for my tanks.

I would get acrylic for a smaller tank but the harder it is to clean the more I lean towards glass, and some fish even tend to scratch it when they bump into it every once in awhile

I would say that the reason most people with saltwater fish tanks use acrylic tanks is because they are durable, lightweight and tough which is very much needed when it comes to a tank. Other reasons many people with a saltwater tank will use acrylic is because they are made from acrylic sheets which are pretty cheap and also due to the fact that they are nontoxic which makes them safe for the fish.