Atleast 3. Believe it or not, corys are schooling fish, and should be in groups.
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55 Gallon:
African Cichlids - Mbunas
10 Gallon:
6 White Clouds
10 Gallon Nano:
8 pounds Fiji Live Rock
1 Gold Clam
5 Gallon:
1 Male Betta
2 Corys
(2)1.5 Gallons:
Bettas
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