So I am going to be getting a new for reefing. I need a little input.

[Proteus]

There are pros and cons of large and small tanks.

Large systems equal money and time. All you equipment is more expensive.ore salt. More for dosing. More time for maintaining tank
But I found water quality more stable

Small tanks are cheaper and less time. But you are limited on fish

I've had 180g and my current 26gallon. To be honest I like my little tank much more.