My fish list changes quite often and I have gotten rid of a fair few fish as of late so my list is somewhat short atm.
4 peacock eels
a few dozen guppies (they sell well here and spit out fry fast so help pay for fish food, etc)
3 upside down catfish
about 15 glass shrimp
a few hundred pond snails (damn pests, they are a bugger to get rid of once they take hold, short of pulling the whole tank apart and blasting with boiling water. I don't trust dosing the tank due to my shrimp either)
1 trumpet snail
That's about it for freshwater I think.
Atm I am setting up a 15 gal saltwater nano which will hold some live rock, cleanup crew and a warty frogfish
The seahorse tank is on hold atm due to lack of funds (AGAIN!!!).