What is the tank thickness recommended for a 4ft??

[paperdoll]

What is the tank thickness recommended for a 4ft tank?? using chiller and will be a tank with fish and corals etc? will a 8mm be ok or a 10mm?

[Morgan]

Go for 10mm if the tank is 4'x2'x2'.

[paperdoll]

I should be getting a 4ft x 1.8 x 1.8 coz that's the size of my present stand

For marine fish, will a sump tank or a IOS tank be better for marine?

[Tanzy]

Thickest possible, but beware of weight, price and colour distortion.

I use 8mm on my 75gal.