Invert Mini High/Low pressure tank?

[MandanX]

ive just got a second hand Invert Mini, what tank should i get? high/med/low pressure and why? thanks

 

[Spookls]

Ant standard tank with approximately 800/850 psi output will be fine this is what i use

 

[david525]

850 output fine the only gun that needed anything lower . was angels