Is it possible for apistos of different body shapes to breed with each other? For examples, those from different species groups?If you don't want accidental crosses, then only keep apistos with different body shapes together. These are not likely to cross breed.
Interesting. That's what I found too when I kept a male Jurua (Cruzeiro) and a couple of female cacatuoides in the same tank.i tried to. the males cannot tell the deference, but the female can.
Do you have any links or info sources for figuring out which species belong to which group/complex? Thanks!Bilbo is right. Some other examples include crosses that Dr. Uwe RÃ¶mer attempted when studying the relationships of some of the nijsseni-group species. If you can find a copy of his description of A. baenschi, it has photos of these crosses. They are some really ugly, deformed fish. A similar problem occurred with the original imports of A. sp. TefÃ©, which were crossed with A. agassizii from the Rio TefÃ© without knowing. These fish showed deformed scale rows and fins, produced small numbers of weak fry that were infertile. Not all crosses are as bad as these, however. Many of the domestically produced fish presently sold as "A. sp. Algodon" are inadvertent crosses between closely related species belonging to the cruzi/Pebas subcomplexes of the eunotus-complex. In the 80s, specimens of A. macmasteri were believed to have been crossed with specimens of other macmasteri-complex species to produce the spectacularly colorful "A. viejita" sold in the hobby. There is a good chance that the present commercially bred "A. viejita" have some of the same hybrid blood lines. The same is true for the colorful strains of A. hongsloi. They appear to be crosses between several different species/forms of the hongsloi-complex. Many of the colorful strains of A. agassizii are actually crosses between multiple species/forms belonging to the A. agassizii superspecies. So, you see, there is nothing really wrong with crossing species for specific purposes. What is wrong is selling such hybrids as a specific species. If you don't want accidental crosses, then only keep apistos with different body shapes together. These are not likely to cross breed.
Ok, so based on that link, cacatuoides and macmasteri are in their own separate complexes. So they wouldnt interbreed then? Am I understanding that correctly? With the cross breeding issue out of the way, would a female of one species and a male of another species tolerate each other in a 20 high, 29g or 33 long community tank?