Guppies first, then mollies, platies and swordtails all grow at about the same rate.
Molly, Guppy and Swordtail.
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.
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.
no, angel fish lives in fresh water like in ponds and lakes but clown fish lives in saltwater like the sea
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.
Fish which do not lay eggs, but give birth to live young, include:guppymollymosquito fishplatyswordtail