So I've had my 20 gallon up and running for over a year now, and I've gone through several different "line-ups" of fish, let us say, before I settled on one I really liked. Right now this tank houses 2 siamese algae eaters I've had for the longest time, very tough little critters, have survived 2 bouts of ich, love to graze on my hand and arm when it's in the tank rescaping or doing maintenance. Also in the tank are a small school of 5 neon tetras, which were pretty small when I bought them but are now getting quite big and absolutely flourishing, they never school they're always all over the tank so it seems they're quite comfortable. Finally, there are 4 female guppies who like nothing more than to stuff their faces. Their little bellies get so round after every feeding, it's hilarious. Now to my point: these are the fish I like and definitely want in this little community tank, but I am lost as to what to get for a centrepiece fish. I have tried several different fish, bettas (neons picked on them and nipped their fins), dwarf gourami (too aggressive toward other fish) laetacara curviceps (quite liked these but very hard to sex which was a problem for me), kribs (way too aggressive during breeding), and german blue rams. The GBR's have by far been my favourite in terms of both looks and temperament, but my LFS carries very weak stock GBR's and I've never been able to keep them alive for more than a couple months at a time before they wasted away to camallanus worms or some other internal parasite. I just lost my last male GBR and decided to forego buying any more of them because they have obvious problems. What I would like is any suggestions for a good centrepiece fish for this tank build. I love colourful fish, I would prefer something moderately peaceful, and I absolutely love cichlids of all kinds so some type of dwarf cichlid would be ideal.