B
Betta Fish
Betta splendens
VS
L
Lawnmower Blenny
Salarias fasciatus
Choosing between Betta Fish and Lawnmower Blenny? 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.
Betta Fish
Betta splendensVS
Lawnmower Blenny
Salarias fasciatusCommon Name
Betta Fish
Lawnmower Blenny
Scientific Name
Betta splendens
Salarias fasciatus
Type
Freshwater
Saltwater / Marine
Difficulty
Beginner Friendly
Intermediate
Temperament
Aggressive
Peaceful
Minimum Tank
5 gallons
30 gallons
Recommended Tank
10 gallons
55 gallons
Temperature
76°F - 82°F
75°F - 82°F
pH Range
6.5 - 7.5
8.1 - 8.4
Max Size
3 inches
6 inches
Lifespan
2-5 years
2-6 years
Diet
Pellets, Flakes, Freeze-dried foods, Live foods (occasionally)
Marine algae, Hair algae, Diatoms, Nori, Spirulina, Marine pellets
Betta Fish
✓ Good For
- Beginners
- Small tanks
Lawnmower Blenny
✓ Good For
- Community tanks
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