14g or 29g??

so I used to have a 90 gallon reef. I have been out of the hobby for a good 3-4 years now and like all loves in life you want to keep going back. I have an opportunity to get either a 14 gal or 29 gal bio cube in my budget. I'm wondering the pros and cons to each and what would be better. So far my fish i want is a pair of small clowns, a citron and poss a dragonet of some sort. Corals I want to keep are easy zoas, shrooms, maybe a rock anem or RBT. nothing hard.
open to suggestions, thank you