J
Jack Dempsey
Rocio octofasciata
VS
P
Penguin Tetra
Thayeria boehlkei
Choosing between Jack Dempsey and Penguin Tetra? Both are excellent choices, but they have different care requirements and temperaments. Use the detailed comparison below to make an informed decision based on your experience level, tank size, and community goals.
Jack Dempsey
Rocio octofasciataVS
Penguin Tetra
Thayeria boehlkeiCommon Name
Jack Dempsey
Penguin Tetra
Scientific Name
Rocio octofasciata
Thayeria boehlkei
Type
Freshwater
Freshwater
Difficulty
Intermediate
Beginner Friendly
Temperament
Aggressive
Peaceful
Minimum Tank
55 gallons
15 gallons
Recommended Tank
75 gallons
20 gallons
Temperature
75°F - 80°F
72°F - 82°F
pH Range
6.5 - 8
6 - 7.5
Max Size
15 inches
3 inches
Lifespan
10-15 years
5-8 years
Diet
Cichlid pellets, Frozen foods, Live foods, Shrimp, Bloodworms, Vegetable matter
High-quality flake food, Small pellets, Bloodworms, Brine shrimp
Jack Dempsey
✓ Good For
Penguin Tetra
✓ Good For
- Community tanks
- Beginners
- Small tanks
- Schooling displays
Explore More
Similar Comparisons
Discover other popular fish pairings to find your perfect aquarium match.