Newbie fish owner with Neon Danios

[LadyS]

So I've recently adopted three Neon Danios (I think they're also called Glofish) from my sister. They're in a smallish tank, I think five gallons. I've read around that Danios work best in schools of five to six, but also that they should have at least ten gallons. I can't afford a new tank, and if I hadn't taken them in they probably would have been flushed. (They were moving across the country and couldn't take the fish with.)

So my question is, should I look into some tankmates for them, or is a five gallon tank too small for any more?

 

[fluttermoth]

A five gallon is definitely too small for any more fish.

Unfortunately, you might have issues with aggression. These fish evolved to live in shoals of hundreds, even thousands, of fish in the wild, where any aggressive behaviour is spread around. In small groups, in small tanks, you can easily get one fish who bullies the others.

 

[NickAu]

5 gallons is too small for Danios, I have mine in a 6 foot tank and they use every bit of it.

You can buy a bare 10 gallon tank for about $20 from places like Wallmart, Kmart etc, Places like Petco have dollar a gallon sales from time to time
https://www.walmart.com/ip/Aquaculture-10-Empty-Aquarium/144433503