Could use some advice on what is needed, please.

[Classic_Rich]

"I just purchased a 40-gallon tank, I am converting into a sump/refugium. My intention is to have soft corals, some fish and of course a cleanup crew. My primary tank is a 60 cube. I am still in the building stage. Any suggestions, help, pointing out design flaws or even a better way of constructing this sump would be greatly appreciated. the last picture tank and stand. The stand is going to be rebuilt to accommodate the newer sump. Thank you "

I was already given advise along with a narrative explaining the benefit of placing my skimmer after the refugium.

Because of role reversal, is change needed for the partitions?

 

[Classic_Rich]

See some of you are looking, I really could use some insight on this being I would like to get it right the first time. Thank you

 

[coseal]

looks solid to me! you using glass baffles with that tank? or acrylic?

 

[vetteguy53081]

In essence, you need the essentials:
Water movement
Good lighting
Salt mix
Filtration
Protein skimmer- in some cases not necessary
Reliable heater
Reliable test kit(s)