H

Helfrichi Firefish

Nemateleotris helfrichi

VS
U

Upside Down Catfish

Synodontis nigriventris

Choosing between Helfrichi Firefish and Upside Down Catfish? 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.

Helfrichi Firefish

Nemateleotris helfrichi
VS

Upside Down Catfish

Synodontis nigriventris
These fish can typically coexist peacefully
Common Name
Helfrichi Firefish
Upside Down Catfish
Scientific Name
Nemateleotris helfrichi
Synodontis nigriventris
Type
Saltwater / Marine
Freshwater
Difficulty
Intermediate
Beginner Friendly
Temperament
Peaceful
Peaceful
Minimum Tank
20 gallons
20 gallons
Recommended Tank
30 gallons
30 gallons
Temperature
72°F - 78°F
72°F - 79°F
pH Range
8.1 - 8.4
6 - 7.5
Max Size
2.5 inches
4 inches
Lifespan
3-5 years
5-8 years
Diet
Frozen Mysis shrimp, Frozen brine shrimp, Marine pellets, Copepods
Flakes, Pellets, Frozen foods, Algae wafers

Helfrichi Firefish

✓ Good For

  • Community tanks

Upside Down Catfish

✓ Good For

  • Community tanks
  • Beginners
  • Schooling displays
Explore More

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