Animal Stories - Platies - Moonfish

Animal-World Information about: Platies - Moonfish

   The Platy is considered the color king of the live-bearer fishes! It is one of the best beginner fish and is excellent for community aquariums!
Latest Animal Stories
Joe - 2011-08-09
A lot of my platies look like they are pregnant. Is there any indication when I should seperate them from my large tank into seperate breeders? I dont want to keep them captivated too long in the breeders. I had one platy in there for 4 days and finally took her back out? Thanks for your reponse. Joe

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  • Charlie Roche - 2011-08-09
    Better safe than sorry. If they start having young definitely take them out. That makes some sense. The problem is -- it will probably be too late by then. So just take them out and if false alarm - you haven't hurt anything. Error on the side of caution. Does that make sense?
FB101010 - 2010-11-08
I have 4 male and 4 female platys, in a 20g freshwater tank, along with 6 X-ray tetras and 5 neon tetras (small). I have noticed lately (last 3 days) that the platys are all laying at the bottom of the tank, as if resting, and they only come up and swim around if I approach the tank and/or feed them. Are they sick? The tank has cycled and I have had fish in it since October 10...I am new at this.

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  • melissa - 2011-01-05
    Its not a good sign when a fish that is known to be active starts becoming still. If it's not too late do a 1/3 water change every three days or so. If your tap water has chlorine in it you will need to treat it. My water is well water and perfect at that (lucky me)! You may want to go out and purchase some malachite green or something even as simple as a product by jungle called anti fungus. Follow the directions on the package. If your fish have any white spots or clamped fins or swimming is strange motions you have sick fish on your hands. The #1 key to keeping healthy fish is keeping good water quality. Your fish tanks water ( depending on the load of fish) should have a water change every week or at least every two weeks. I do half water changes every one to two weeks. Buy your self a water test kit from the local pet store or online. It should have Ph, ammonia, nitrite, nitrate tests in them and a few others. Second important thing is to give them a good diet. Certain natural foods can provide your fish the nutrients to help boost your fish's immune system. My fish get a mix of food that I buy and mix myself. It can become costly but if you buy in bulk it's cheaper and it can be frozen up to one year. Here's a few foods that can work for fish from fry size to large platies. Plecocaine, Decapped brine shrimp eggs, apirulina algae flakes, Brine shrimp flakes, dried daphnia, Golden pearls 500 to 800 micron size, Astaxanthin powder ,earthworm flakes, and any other live dried foods. Mix those together and you have the best food money can buy for fish! It's a food mixture the pros try not to tell others about! You can also feed frozen bloodworms and frozen brine shrimp, wingless fruitflies, and so much more. Live plants in the tank is a very good idea too! I have also blanched spinach and chopped it up in my food processor and fed very small amounts to my fish and they will eat that too! I usually feed that every few days just before I feed them all the good stuff. It's something they will get use to eating that they NEED. Yes fish need veggies too. Best of luck with your fish! melissa
  • anthony - 2011-04-05
    That is because your water is TOO COLD! Means damaged swim bladder by the water being to cold! Make sure your water temperature is between 78-80 degrees. 78 for maintenance and ideally 80 if you want to breed efficiently.
  • Charlie Roche - 2011-04-07
    Is it possible for the tank to be too small for that many fish? I have been told a blueprint to follow is 1 inch fish for each gallon and to subtact out gallon capacity for gravel decorations, plants etc. You have You have 19 in a 20 galllon tank. Is it possible you would need a larger tank. Of course than you can have more fish also. Maybe they just can't find their own terriory?
fish lover - 2011-03-20
When do you think my Platy will give birth? Image link below



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  • gdd - 2011-03-30
    Any day now.
Kay - 2006-03-22
I have kept many many types of fish, and bred many. But my eye keeps going back to one of my first fish, the Platy. My favorite variety is the sunset variety. Up till now they have always been a part of one of my community tanks, now they have their own tank. The type I have is sunset plume tail, which is a little tail on the female and male.

I feed them tropical flake, frozen brine and Frozen bloodworms. The fry hide in the floating hornwort I have in the tank. I feed the fry, powdered fish flake with

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  • Victoria - 2010-12-31
    I am a first time fish owner. I bought 4 Platys 2 days ago. I put them in a new 1 gallon tank. I fed them tropical fish flakes and on the first day they ate it but, on the next day 3 died when I woke up. Only one is alive and he's not eating. Do you have any tips?
  • ghfghfghfghfgh - 2011-03-14
    Get a bigger tank.
Phyllis - 2010-12-14
Want to try something fun? Raise your very own created VARIATUS PLATIES!
After you set up your 20 gal. tank, and it is well established, buy 1 male swordtail and 3 female platies. After they breed and have babies the babies will be what is known as VARIATUS PLATIES!
I like to experment by buying each fish a different color so each baby batch is different colored. Then you can male/female pairs of the raised fish off and breed to each other for even more interesting colors and shapes. You'll always have fish, and you'll get some beautiful ones at that! Have Fun!

maddie - 2010-08-02
I'm planning a 10gal aquarium with fancy guppies and platies I have been doing a lot of research and know about the cycling and all that stuff but,have never had a tropical fish tank and on this page and the guppy page it says that you can keep them in the 60's (temp wise) and that's about the temp of my house
so I was wondering if I would need a heater? I would also like some more tips.


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  • janine - 2010-08-29
    I would still get one because the 60's as far as I have read is still on the cool side. I would get one for the 10 gallon size, have it set on a low temp, just to take the edge off cool nights. The other night it got quite cool here, I forgot the living room windows were open still and my 20 gallon tank was reading 68F, but the 10 gallon in my bedroom was still in the high 70's, window open. Even if you just have to set it on a low temp, I think it would be better. I've noticed my 20 gallon tank is always a couple degrees lower than the house, but the 10 gallon stays pretty close to the house even with the heater off.
    I was worried I was going to wake up to fish pops floating in the tank. lol
Kevin Lee - 2009-06-13
I purchased 4 Blue Moon Platys and 6 Sunset Platys last June and put them in my 160 gallon backyard pond. When I went to net them in the fall I had over a 100! They are residing in my 65 gallon basement tank right now. Amazing what good water and sunlight will do for fish.

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  • janine - 2010-08-29
    I can imagine that would be pretty easy, especially if all 10 or majority were females. I've had 1 male and 5 females for a couple months total, some females are a little newer as well as 1 new male. The surviving babies from 1 or 2 females dropping fry is now getting closer to 20 in my 20 gallon tank. I don't do anything to protect the fry, if they survive it's all on their own, figure it's better that way, survival of the fittest really.
Kristi - 2008-11-05
My female has looked pregnant for a few months now and we are wondering if she is actually pregnant or just chubby. How long is a platy pregnancy??

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  • victoria - 2010-03-14
    A platy pregnancy can last for 5 to 8 days if the female is pregnant and does not have her babies by then, then i'm guessing she is not pregnant.
  • andy - 2010-05-16
    "hello, I own 2 platies in my 10g tank. 1 male 1 female. I read a lot about them. One I know is pregnant because of the dark spot (gravid spot) near her tail, and to answer your question most pregnancies are 26 days (2-3 weeks).
  • janine - 2010-08-29
    Females can be pregnant constantly, or at least mine seem to be. For some reason some drop a bunch at once and others, like mine drop a handful just about weekly so they look pregnant longer. On the lighter colours it is easier to see the babies inside. I have 1 jumbo tri colour and because her mid section is white it's really easy to see.
    The average platy pregnancy lasts anywhere between 3 and 5 weeks. But if stressed the mom can abort her entire load, in this case you will have a platy that looks pregnant, then all of a sudden not, but there's no little babies floating around the tank.
Anonymous - 2009-10-24
I have two Platies, Moonfish. They keep on having babies. They mate with others of their same kind and I have more than 20 babies, except one, which has grown.

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  • vistoria - 2010-03-14
    If you don't want your platys having more babies then I wlould get another tank and put the females in separate tanks where the males can't get to them.

    from animal expert victoria m allen davis.
  • Olivia - 2010-06-16
    You can also gt a tank divider to separate the males and females to prevent from breeding again. I've done this and my female platy has giving birth much earlier than she used to be..
Josh - 2010-03-06
Ok I have a lot of quesions, like when should you put your pregnant fish in a breeding tank because I was hearing as soon as possible so she doesn't get stressed out. And I heard the less time she's in there the better. Please someone help me and I cant find the gravid spot on my marigold variatus.

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  • andy - 2010-05-16
    "I read online that if you put her in too late she can abort the pregnancy, causing death. If the breeding tank is 5g or more, she will be fine for weeks, just make sure the mother isn't with the fry too long or they will be eaten. Look above her anal fin and in front of her tail fin to find the gravid spot. Signs of labor are loss of appetite, shaking, and hanging out near the heater.
    Good luck!