How Long Do Blac Molly Live. Molly fish are affordable and widely available in pet stores and online. Keeping molly fish together you should keep them in groups of at least four or more, they naturally stick together.
Although this is not 100% necessary, yes, molly fish should be kept in small groups. The ph has stayed about 6.7 for about 3 weeks until thursday when i noticed the fish died. Ideal water temperatures of black mollies.