guppies don't shoal. They're not really a shoaling fish. I've had 4 males in my 26 litre and a couple of platies (just before I got the 2ft as the extra 2 made it over crowded) and they were really happy - no fighting or aggression of any kind and they were fun to watch.
I currently have a male and a female left (I added some females after I got the 2ft tank) and they are fine. The 26 litre is now my fry tank!
I agree with zuulan. Guppies (4) or endlers (about 6 as they are smaller) would be great for your tank.
				
			I currently have a male and a female left (I added some females after I got the 2ft tank) and they are fine. The 26 litre is now my fry tank!
I agree with zuulan. Guppies (4) or endlers (about 6 as they are smaller) would be great for your tank.
 
	             
 
		 
     
  
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		