H
Helfrichi Firefish
Nemateleotris helfrichi
VS
S
Severum
Heros severus
Choosing between Helfrichi Firefish and Severum? 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 helfrichiVS
Severum
Heros severusCommon Name
Helfrichi Firefish
Severum
Scientific Name
Nemateleotris helfrichi
Heros severus
Type
Saltwater / Marine
Freshwater
Difficulty
Intermediate
Intermediate
Temperament
Peaceful
Semi-Aggressive
Minimum Tank
20 gallons
55 gallons
Recommended Tank
30 gallons
75 gallons
Temperature
72°F - 78°F
74°F - 84°F
pH Range
8.1 - 8.4
6 - 7.5
Max Size
2.5 inches
12 inches
Lifespan
3-5 years
10-15 years
Diet
Frozen Mysis shrimp, Frozen brine shrimp, Marine pellets, Copepods
Cichlid pellets, Vegetables, Frozen foods, Spirulina, Algae wafers
Helfrichi Firefish
✓ Good For
- Community tanks
Severum
✓ Good For
- Community tanks
Explore More
Similar Comparisons
Discover other popular fish pairings to find your perfect aquarium match.