What fish besides bettas can live in an unheated, unfiltered, non-aerated tank?

Question

I have had great luck with both male and female bettas, white clouds, and blue paradise fish in untreated plain tanks in the 1 to 3 gallon range. Are there any other freshwater fish that can live in this environment?

Answer 1

are you kidding? koi get over 2ft and goldfish get up 2ft... both are carp and are EXTREMELY dirty fish that need lots of filtration.

honestly, betta are tropical fish and should have heaters as their ideal temp is around 78*F to 82*F and under 75*F can lead to listlessness and poor health (they can live 7yrs if well cared for).

just a question, why would you want that? it's so much more work than a filtered tank...

Answer 2

Guppies, Danios, Bloodfin Tetras, and Dojo Loaches all make great inhabitants for coldwater tanks, however, only Guppies can be comfortably kept in a tank of that size (3 gallons is the smallest tank I would give them)... Danios are extremely active schooling fish, Tetras are schooling fish, and Dojo Loaches reach almost a foot in length. If you want a cool coldwater fish, try a 10 gallon tank with some Darters and a small school of Panda Cories... The colorful darters and black and white Cories will make a great, contrasting tank. Also, consider planting it with mosses, Vallisnerias, Saggitarias, and Anubias for a more natural look. This tank will, of course, need a filter to allow bacteria to break down waste and keep the tank oxygenated. Contact me if you have any questions.

Soop Nazi

Answer 3

All of the above wouldn't work. They need airation andKoi get 3ft plus. Goldfish get 14'' and both need massive filtration. Guppies need airation, and do better with heat, but they'll do fine and even breed without it.
So basically nothing else can live like that...

Answer 4

danios,most barbs ( small like golden bard,rosy barb etc..) paradise fish .dojo loaches

Answer 5

That would be goldfish,guppies,koi,and you can`t put guppies with any of these fish.