Can Guppies and Bronze Corydoras Live Together?

Guppies and Bronze Corydoras, side by side

	Guppy	Bronze corydoras
Adult size	2 in5 cm	2.6 in6.5 cm
Smallest tank	10 gal38 L	20 gal76 L
Keep	3 or more	6 or more
Temperature	72–82 °F22–28 °C	70–81 °F21–27 °C
pH	7–8.2	6–8
Temperament	Peaceful	Peaceful
Swims	Near the top	On the bottom

What size tank do they need together?

Each row shows how many of each the tank carries comfortably when these are the only two kinds in it.

Tank	Guppy	Bronze corydoras
5 gallon	Too small for both
10 gallon	Too small for both
20 gallon long	Too small for both
29 gallon	4	7
40 gallon breeder	5	10
55 gallon	7	14
75 gallon	11	18
125 gallon	17	30

Open this pair in the stocking calculator to add more fish or try your own tank.

How to make it work

Add the calmer, smaller fish first, and the larger fish last.
Use plants, wood or rocks to break up the view across the tank. Fish that cannot see each other all day fight less.
Watch closely for the first week. Torn fins, hiding or a fish that stops eating mean it is not working.
Keep a spare tank or a divider ready, so you can separate them the same day.

Questions and answers

Can guppies and bronze corydoras live in the same tank?

Yes, usually. Guppies and bronze corydoras like the same water: 72–81 °F (22–27 °C) and a pH of 7–8. Guppies spend their time near the top and bronze corydoras on the bottom, so they stay out of each other's way.

What size tank do guppies and bronze corydoras need together?

At least a 29 gallon tank, which carries about 4 guppies and 7 bronze corydoras comfortably.

What temperature suits guppies and bronze corydoras?

72–81 °F (22–27 °C) suits both.

More pairs

Based on each species' adult size, water range and temperament (Seriously Fish, FishBase) and the rules of our stocking calculator. Individual fish differ: this is a guide, not a guarantee.