Belgian mini cream puff killies? Shades of ghostbusters.
I will sometimes rear killies in with corydoras group fish. They don't eat fry, and their tanks are larger and planted. Pop a few fry in, label them as I won't see much of them for a few weeks, and I get close to 100% survival rates. I also have more 5 gallon tanks than I have fish for, so they work very well.
I don't have as many killie species as I used to. I let some of them go, or go to friends, and decided to gradually focus on the ones I'd caught myself. My fishroom is a bit warm for the Aphyosemions I like best, and last year I decided to stop beating my head against a wall. The Benin killies do well, and some of the Gabonese ones have adjusted. I may look for a couple of others in Europe, and if my hoped for trip to Sierra Leone materializes, and can get some interesting Epiplatys and ex-roloffia/Scriptaphyosemions to go with what I'm enjoying now.
I took a shot at keeping Nothobranchius. I do well with them, but they aren't my fascination. I currently have Procatopus similis and nototaenia, Aphyosemion ottogartneri, zygaima, punctatum and my Gabonese escherichi, Fundulopanchax scheeli from a local breeder, Chromaphyosemion poliaki and my two Beninois biteniatum locations, and Epiplatys huberi (Gabon), togolensis (Benin) and two Benin bifasciatus, one blue and one green morph. Oh, and Nothobrnchius palmqvisti for my sole annual.
I'm no longer an AKA member, so I don't get the journal, but my KCF (France) journal should be here soon, and I'm an online member of the British BKA. If the AKA offered online memberships with only digital JAKAs, I'd rejoin, but for a full membership, I can't participate or get or distribute fish through the club.