Most beautiful fish.

Beauty is the eye of the beholder. Some fish deemed beautiful by some are viewed as horrid by others (my wife hates my dimiochromis compressiceps, while they're among my favorites).

It's all down to personal preference and what you want to stock, and if your tank is compatible with what you want to stock as well as if the fish are compatible with each other.
 
german blue rams alll the way.

Bettas are obviously beautiful.

Some killies have a lot of color. Rummies are beautiful.

And discus are one of the most attractive fish to the eye , but they'll require more attention and a larger tank (55 gallons+)
 
german blue rams alll the way.

Bettas are obviously beautiful.

Some killies have a lot of color. Rummies are beautiful.

And discus are one of the most attractive fish to the eye , but they'll require more attention and a larger tank (55 gallons+)

ah, yes, discus... how could i forget.
 
the really big chiclids like black nastys, frontosa, Oscar, earth eater, the list goes on and on but i hate absoulutly hate blood parots.
 
Never had one, but I am partial to the following:

1. Frontosa

2. Jaguar Cichild

3. Synodontis Angelicus
 
Beauty is definitely in the eye of the beholder. I find angels completely dull and unattractive, but others love them. My personal favorites are rainbowfish, lots of color and personality, followed closely by killifish and German blue rams, but if you're doing a small tank on a small budget, fancy guppies will get you the most color for your buck, IMHO.
 
Apistos
 
AquariaCentral.com