Can Molly Live With Glass Catfish?
Molly and Glass Catfish are compatible. Temperature overlap 75–80°F. Both peaceful.
Conditions: Minimum 20 gallon tank.
Parameter Comparison
| Parameter | Molly | Glass Catfish | Overlap |
|---|---|---|---|
| Temperature | 72–82°F | 75–80°F | 75–80°F ✓ |
| pH Range | 7–8.5 | 6.5–7 | 7–7 ✓ |
| Temperament | peaceful | peaceful | Both peaceful ✓ |
| Max Size | 4.5" | 5" | Similar ✓ |
| Min Tank Size | 20 gal | 20 gal | 20 gal minimum together |
| Diet | Omnivore | Carnivore | — |
| Care Level | beginner | intermediate | — |
Tank Requirements for Molly + Glass Catfish
To keep Molly and Glass Catfish together, you need at minimum a 20 gallon tank. Molly should be kept in a school of 4+. Glass Catfish should be kept in a school of 5+. Provide adequate filtration, stable temperature with a heater, and hiding spots to reduce stress.
Species Profiles
Molly
Poecilia sphenops
Mollies are versatile livebearers that come in many varieties including black, dalmatian, balloon, and sailfin. They prefer hard, alkaline water and can even tolerate brackish conditions. They are active, personable fish that breed easily.
Full care guide →Glass Catfish
Kryptopterus vitreolus
The Glass Catfish (Kryptopterus vitreolus) is a intermediate-level freshwater fish growing to 5 inches. Peaceful temperament, minimum 20 gallon tank.
Full care guide →