CheckMyFishTankJulii Corydoras care
Corydoras trilineatus · Freshwater · Beginner level care
A spotted cory that is often sold as the julii cory.
Feeding
Once a day. One or two sinking pellets or wafers per fish, eaten within a few minutes. Sinking pellets, wafers, frozen bloodworms.
Good tank mates
Fish that pass every check with Julii Corydoras in a 40 gallon tank: same water, overlapping temperature, nobody gets eaten and no bullies.
Do not mix with
- Silver Dollar: Silver Dollar grows big enough to eat Julii Corydoras.
- Tinfoil Barb: Tinfoil Barb grows big enough to eat Julii Corydoras.
- German Blue Ram: German Blue Ram and Julii Corydoras need different water temperatures.
- Angelfish: Angelfish grows big enough to eat Julii Corydoras.
- Discus: Discus and Julii Corydoras need different water temperatures.
- Convict Cichlid: Convict Cichlid is aggressive and will bully peaceful Julii Corydoras.
- Oscar: Oscar grows big enough to eat Julii Corydoras.
- Jack Dempsey: Jack Dempsey grows big enough to eat Julii Corydoras.
Questions
What size tank does a Julii Corydoras need?
At least 20 gallons for a group of 6. Adults grow to about 2.25 inches, so plan for the adult size, not the size at the store.
What temperature does a Julii Corydoras like?
72 to 79 degrees Fahrenheit, with a pH of about 6 to 7.5. A steady temperature matters more than hitting one exact number.
How many Julii Corydoras should I keep together?
Keep 6 or more. They feel safe in a group and show better color and behavior.
What do Julii Corydoras eat?
Sinking pellets, wafers, frozen bloodworms. Feed once a day: one or two sinking pellets or wafers per fish, eaten within a few minutes.
Sources
Checked against these sources on 2026-11-10. When sources disagree we use the safer number.