I am hoping to buy a nano tank soon, trying to keep it around $50.
Option 1: Chewy - **Lifegard Low Iron Ultra Clear Glass Cube Tank Fish Aquarium, 5-mm, 5-gal, 10.47 x 10.47 x 10.47-in**

Option 2: Amazon - Cirrsondy 5.18 gallon 11” x 13.78” x 7.87”

One is a cube and the other is a taller tank.

Which one would you choose for a good aquascape?

Is a Fluval 107 a good filter for a 20g long shell dweller tank or should I grab a 207? Also, should I be putting a wave maker in the tank as well for extra flow/surface agitation?