29 gal tank should do a nice job, that what I have

here are some pics to give you some ideas

29g Sump/Refugium FTS
IMG 0095 - Filtration??
Skimmer & Filter Sock Section
IMG 0098 - Filtration??
Return Pump Intake Section & Phosban Reactor/Refugium Pump
IMG 0097 - Filtration??
Refugium
IMG 0096 - Filtration??

HTH