сообщение rhinoceras
...в известной Вам книге описывают ...
Ну, у нас и неонов с золотухами успешно держат. Говорят, рыбы щасливы и довольны.
Пожалуйста, ссылку или выдержку!
Мне до этого места еще долго!
Речь идет прежде всего о содержании в научных лабораториях, где, разумеется, ничто не должно мешать эффективному размножению.
Самцам всё равно, с кем размножацца или чью икру оплодотворять (Ваш жЫрный гименохирус и тритон
). Но это нервирует "чужих" самок. И, главное, кому нужна межвидовая икра и помеси? По-моему, это то же, что держать в одном аквариуме креветок разных видов и окрасов. В конце концов потомство окажется невзрачным.
Вот что говорит немец:
"The frogs themselves are very social, so they woudn't care. But, when keeping two or more species in one tank you dramatically lower the chance for successful matings: the frogs don't care in this case, too! Not that mating would happen very often, but I want to prevent even the possibility of producing hybrids.
I once had Pipa carvalhoi and Pipa parva in one tank for some time, and the parva males proved being a real "pain in the ass" for the carvalhoi, if you catch my drift."
>I think many specimen live in same environments and sould have some behaviour barriers to prevent from cross breeding. Am I right?
"Only in theory. Mating in the ponds is mainly a random process for amphibians, and as with all random processes success is a matter of probability - something you wouldn't want to decrease deliberately in your home aquarium, as I already stated above. Male frogs generally don't care what they clasp, and Xenopus is no exception. And picture this: You keep two Xenopus species in the same tank. One morning you see eggs. But you haven't observed the actual mating, and now you don't know what species they are from - or if they are the result of a cross mating, possibly producing sterile hybrids. Now what? Will you raise the
frogs, until you know the result, which might suggest that you better kill the semi-adults?
Keeping Pipa and Xenopus in the same tank isn't a good idea either. It turned out that Xenopus loves to feed on the fresh eggs it finds on Pipa's back! (Happened to a friend of mine with parva and tropicalis)"