Glass top or No glass top?

[Aquattro]

Glass keeps in heat, and gets dirty really fast, blocking light. I wouldn't use it. If you need to keep things in or out, try a canopy, or some type of screening to cover it (that doesn't block light)

[Proteus]

I used glass and found that I was constantly cleaning them of salt buildup. I switched to egggrate and am satifyed