I stopped watching a few years ago. Like my husband said, all they cared about was having rich people and actors on the show. It ended up being more about what client was getting the tank over the tank itself.
I too wish they did more freshwater. More people can afford it, there are endless possibilities with fresh. Sad to say but with salt they kept stocking the same things over and over. It got so boring.
If their tanks and stocking where more successful they could have had follow up episodes on how the fish were growing and how thier tanks hold up over time.