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Poecilia latipinna
Sailfin Molly

 Age of Aquariums > Freshwater Fish > Sailfin Molly - Poecilia latipinna

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molly3.jpg (16kb)
Photo Credit: Lynn Smith

I breed mollies. I have two aquariums in my room. My mollies live in my biggest. I enjoy them, because they are nice to their fry, and donīt fight that much. I just bred a pink molly a week ago. The mother died however, after having the babies. She was too young to be bred, and I bought her pregnant. Though she was a balloon molly the father is a sailfin molly. The good thing about mollies, is that they will breed with other mollies that are not the same variety as they are. The matriarch of the tank is a huge platinum balloon molly. She is my favorite.

Contributed by (no name given)

I have a pair of blue sailfin mollies in my community tank. At first the male seemed fine with the other fish, then as time went on, he came to be more and more aggressive with the other fish...especially with my pair of dwarf Gourami's, and the siamese fighter. Apart from this, the 2 mollies I have are very intelligent fish and fun to keep. They always know when I am near the tank, as they swim to the front and beckon at the surface, and I can also hand feed them.

Contributed by Dave

I have just added two pairs of sailfins to my brackish tank as of 7 months ago. I also have a Colombian Black Tail Shark, and one Silver Stark at the moment. Due to my location, it is hard to get brackish fish except for maybe four times a year the pet store I deal with gets some in. The two other fish help to keep my sailfin population in check. They are very lovely to look at as they play, but the marbled sail is a little more aggressive in my tank and likes to chase the other mollies around. It made the mistake of doing that to the shark and the stark, and both of them put it in its place without injury. Hard to believe in a 220 liter tank that they would still try to mess with each other.

Contributed by Thomas Husk

I have recently setup a 420 L tank, dedicated to Sailfin Mollies. All mollies are seemingly friendly, hardy, and a lot of fun to watch. They mix well with most community fishes, and even seem to mix well with a single male betta. I recommend that you change 25% to 50% of the water weekly, as Mollies seem to thrive with fresh water. I also recommend a good Biowheel or similar water conditioning device. Simply using an under-gravel filter doesn't keep them as happy and stress-free as good quality water filtration. They like a temperature of around 28°C, but certainly can withstand 25-30°C, for those like me, whom like to conserve their HVAC dollars in the Winter. I have 50 babies right now, and have more on the way. Also, don't overfeed, their appetites are much larger than their chemistry can process food.

Contributed by Mike Schaefer

My husband and I raised sailfin mollies, the orange ones. We had our first bunch of fry. Waited, seemed forever to sex them, it took forever. I decided they were all females, they became feeder fish. Not to long after that my husband read an artical about sailfins that said it could take up to a year to sex the mollies. This was a good challenge. My next batch of fry were put into a 200 liter and left to grow for just under a year. I had about half male and half female. This is a great fish to raise if you have the space and time. They are fun to watch.

Contributed by Beth

I had a platinum sailfin lyre-tail male with two platinum females and a golddust female. They all had young, but the most I ever got out of each batch was about ten. I suspect the parents ate most of them. If you keep the fry in a breeding net until they can eat adult food and are a bit larger then they seem to do okay back in the main tank. Four adults did great in a 40 L tank, but I wouldn't put two males in such a small environment. Also, I would put at least two females to every male to divide his attention.

Contributed by Aaron

About 20 years ago, I had one large black female sailfin mollie who gave birth to about 30 fry soon after I purchased her (indicating that she had the XX chromosomes). A few months later, she adopted the outward characteristics of a male (i.e., long gonopodium, larger sailfin, flirted with females) but retained her large body size. I do not think she actually became male, (i.e., XY chomosome) because I don't know if she could actually father any children so to speak...but it was all very intriguing. I read up on molies at the time and found that this strange phenomenon was reported by others, specifically with regard to mollies.

Contributed by Joe P.

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