Danios and swordtails?
 

I have 5 zebra danios in a 20 gallon high aquarium. Would swordtails fit with danios or are they incompatable?

theres only one thing i can say for this...

HELL YAAAAAAA :) swords and danios are awsome together, just ask the sword guy (:P me im refuring to :D)

k thanks, when im done cycling thats what im gonna get lol, how big do male swordtails get? im planning on one male and one female sword tail. I dont want my tank to be overcrowded

my swords are 3 inchs sooooo....

Soooo... that means they're not fully grown yet.
In a small tank, watch the water quality if you mix male/female, as they breed A LOT!!! It's easy for a small tank to become over populated quickly, which will effect water quality just as quickly.

For this being only a 20 gallon might I suggest either 1 male alone or 2 males with lots of decorations? This would avoid breeding, and help you to keep population and sizes in check with the size of the tank. 2 male swordtails can live fine together so long as they have decorations to use to get away from each other when needed.

yep they arnt full grown.

i was saying it as a example i knew they wernt full grown ;)