specific size requirements for reef tank

[jennyQwQ]

Hi guys, I am looking for a new reef tank, due to limited space in my house, I could only have aquarium that the width is 40cm ( not requirement for length or height but want something with a sump). I had search around have not found anything match my requirement. Does anybody know if there are brands doing reef tank that size before I start looking into costume reef tank?

 

[mfinn]

You mean 40cm is the longest?