F

Fantail Goldfish

Carassius auratus

VS
P

Purple Firefish

Nemateleotris decora

Choosing between Fantail Goldfish and Purple Firefish? 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.

Fantail Goldfish

Carassius auratus
VS

Purple Firefish

Nemateleotris decora
These fish can typically coexist peacefully
Common Name
Fantail Goldfish
Purple Firefish
Scientific Name
Carassius auratus
Nemateleotris decora
Type
Freshwater
Saltwater / Marine
Difficulty
Beginner Friendly
Intermediate
Temperament
Peaceful
Peaceful
Minimum Tank
20 gallons
20 gallons
Recommended Tank
30 gallons
30 gallons
Temperature
65°F - 75°F
72°F - 78°F
pH Range
7 - 8.4
8.1 - 8.4
Max Size
8 inches
3 inches
Lifespan
10-15 years
3-5 years
Diet
Goldfish pellets, Vegetables, Flakes, Frozen foods
Frozen Mysis shrimp, Frozen brine shrimp, Marine pellets, Copepods

Fantail Goldfish

✓ Good For

  • Community tanks
  • Beginners

Purple Firefish

✓ Good For

  • Community tanks
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