Guppies first, then mollies, platies and swordtails all grow at about the same rate.
You should not. If you do, your guppy or molly will end up dying.
Yes and no. The x-ray fish, Pristella maxillaris, is a tetra and all tetras lay eggs that hatch into baby fish. They do not have live born baby fish like a guppy, molly or swordtail would.
Some examples of fishes that give birth to live young include guppies, mollies, swordtails, and platies. These fishes are known as livebearers and their offspring develop inside the mother's body before being born.
The guppy was "Lebistes reticulatus" for many many years but now the taxonomists in their ultimate wisdom, have decided that the guppy should be in the same classification as the Molly. Now the Guppy is correctly called "Poecilia reticulata".
The telltale black spot or eye spot that appears on the flank of a pregnant livebreeder (swordtail, guppy, molly, platy) is actually the dark eyes of the embryos forming inside her. The black spot only disappears when the babies do, so she has either aborted (due to stress, the death of the majority of the embryos, trauma eg. being hit in the abdomen or some other unknown reason) or given birth to the brood, which are tiny and will hide in the gravel, in the plants, or on ornaments and can be very hard to see.
Actually, Yes, they can. it is possible but very risky. It should never be tried the other way though; that is impregnating a female guppy with a male molly. the guppy/molly mix would be/have been referred to as gollies and they wouldn't be able to produce offspring, since they are essentially mules.
Characins (Tetra, Piranha, Hatchetfish, Pencilfish, Headstander)Anabantoids (Gourami, Siamese Fighting fish)Livebearers (Molly, Platy, Guppy, Swordtail)KillifishCatfishLoaches
Obviously one male and one female is needed, but also the temperature of your water must be warm enough as we are talking about tropical fish. Different types of molly can breed, so can different species from their family. Guppy/molly hybrids (gullies) are an example.
By having both males and females in the same tank. They are both live bearers and will mate with each other.. But beware the babies grow up to be really ugly!
There are hundreds of "sports" that unscrupulous people have given names to like "Dalmation" "Lyretail" etc. There are actually only three types of molly. Mollies were once classified as "Mollienesia" but the taxonomists have now placed the Molly into the same classification/genera as the Guppy and they are now classified as "Poecilia". The three species are P. velifera, P. latipinna and P. sphenops.
i have a guppy and two black mollies in the same tank,and they get along perfectly fine so far.but sometimes,you get the occasional aggressive molly and it might attack your guppy. you should also ask your local pet store to see which fish can get along and which can't.
Fish which do not lay eggs, but give birth to live young, include:guppymollymosquito fishplatyswordtail