Just my experiance and no ill feelings sarahh, but i just had 2 jewels in a 29 gal and...well they had quite a bit of destruction. The fish store almost didnt take them, but to your defense keeping fish is almost case by case sometimes as each fish has a certain personality for example ive seen multiple jack dempseys in a 75 and there were literally no problems.
To the OP though, You could go with as mfd said dwarfs like kribensis (breed alot) shellies, convicts or rams (id run your tank for atleast 6 months though) If you can find smaller blood parrots you can keep one in there (i know, but ive seen them literally grow to 3 1/2 inches and stop) Its really up to what fish you like and can fit in there (not literally of course).