(chiefly in combination) Any of various fish of the genera Danio or Devario.
- 1995, Mary Bailey, The Ultimate Aquarium, Smithmark, page 158,
Danios are very similar to barbs but are much slimmer-bodied.
- 2019, Madelaine Francis Heleine, Freshwater Aquariums For Dummies, Wiley (For Dummies), page 155,
For example, danios need to be fed often because they have high metabolism rates.