G
Guppy
Poecilia reticulata
VS
J
Jack Dempsey
Rocio octofasciata
Choosing between Guppy and Jack Dempsey? 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.
Guppy
Poecilia reticulataVS
Jack Dempsey
Rocio octofasciataCommon Name
Guppy
Jack Dempsey
Scientific Name
Poecilia reticulata
Rocio octofasciata
Type
Freshwater
Freshwater
Difficulty
Beginner Friendly
Intermediate
Temperament
Peaceful
Aggressive
Minimum Tank
5 gallons
55 gallons
Recommended Tank
10 gallons
75 gallons
Temperature
72°F - 82°F
75°F - 80°F
pH Range
6.8 - 7.8
6.5 - 8
Max Size
2.5 inches
15 inches
Lifespan
1-3 years
10-15 years
Diet
Flakes, Pellets, Frozen foods, Vegetables
Cichlid pellets, Frozen foods, Live foods, Shrimp, Bloodworms, Vegetable matter
Guppy
✓ Good For
- Community tanks
- Beginners
- Small tanks
Jack Dempsey
✓ Good For
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