Tropical Fish for Freshwater Aquariums: Black Molly - Live Aquaria

Black Molly Tropical Fish - YouTube
Photo provided by Flickr
The Molly fish is a livebearing tropical fish that can be fairly easy to breed. For many aquarists the biggest problem is not getting them to breed but stopping them from breeding. If left in a tank with other adult fish, the baby mollies will get eaten.
Tropical Fish for Freshwater Aquariums: Gold Dust Molly Livebearer
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Heating the Molly fish tank will be the next item to look into. Because they are a tropical fish, you will want to purchase a decent heater to keep the water at a constant temperature. If they get too cold, they are more susceptible to disease. Tropical Fish for Freshwater Aquariums: Golden Sailfin Molly Livebearer
Photo provided by FlickrBlack Molly - Swordtail Half Breed - tropical fish tank update - YouTube
Photo provided by FlickrBlack Molly - Swordtail Half Breed - tropical fish tank
Photo provided by Flickr
The Molly is a tropical fish that prefers a little salt in their water. A teaspoon of aquarium salt per 5 gallons of water will go a long way in helping them. You may also see them in saltwater tanks from time to time. There is a local reef store here that keeps black molly fish in a regular saltwater tank with similar sized species. The molly is a very attractive tropical fish that comes in many different colors such as orange, green and black. Some of the more popular varieties include the sailfin, balloon and the dalmation.The Molly is a tropical fish that prefers a little salt in their water. A teaspoon of aquarium salt per 5 gallons of water will go a long way in helping them. The molly is a very attractive tropical fish that comes in many different colors such as orange, green and black. Some of the more popular varieties include the sailfin, balloon and the dalmation.Black Molly - Swordtail Half Breed - tropical fish tank. I gather they call that a cross-breed Molly/Swordtail. Here is an update on OBI, as we named him (Orange Black kenobI). This is a mix breed. Half Black Molly and half Tropical Swordtail fish. Here was original video of the Black Molly-Sowrdtail fry:

In the first video posted on Christmas 2012, some commented that this was biologically not possible. Mollies en Swordtails cannot breed with each other. Then again, others said Swordtails can breed with Black Mollies. I think that this is, proof in the pudding - proof in the aquarium - a Black Molly and a Swordtail can breed and produce fry or baby fish!

"can mollies and platys or swordtails breed?" See forum post:


Half Breed in the living of a Black Molly - Swordtail cross-breed or mix on video. Black Molly - Swordtail fry!All of the above would seem to make mollies incompatible with community tropicals, and to some extent that is true. But, although things like tetras and Corydoras probably don’t have any place in the molly aquarium, there are plenty of fishes that will thrive in the warm, hard, alkaline water these fish need – . Almost all of the New World livebearers enjoy these conditions, and most will even tolerate small amounts of salt if necessary. Other freshwater fishes tolerant of such conditions include glassfish and wrestling halfbeaks. At SG 1.004, a nice variety of unusual brackish water fishes could be kept as well, including bumblebee gobies, Brachirus sp. soles, and orange chromides. The violet goby Gobioides broussonnetii would be an especially interesting addition, coming from the same parts of the world as the mollies and inhabiting the same sorts of watersThe Molly fish is a livebearing tropical fish that can be fairly easy to breed. For many aquarists the biggest problem is not getting them to breed but stopping them from breeding. If left in a tank with other adult fish, the baby mollies will get eaten.Black mollies are hardy little tropical fish that can tolerate water ranging from fresh to brackish, but thrive in freshwater best. The black molly is an excellent starter fish for those new to aquatic hobbies, especially if single sexes are kept. If you own both male and female black mollies, expect these prolific breeders to populate their tank with molly fry.