How do you tell when a red tail shark is pregnant?

Question

We have two red tail sharks, both the same age. But one is bigger than the other. From what I've read and researched, we have a female and a male. Could the small one just be the weaker one? We have a 30 gallon tank right now, they pretty much stay hinden until night time for some reason. They share the tank with two Bala Sharks, but they don't ever interact with the Balas.
[e-mail] if you could email back here with any answers in case I forget that I posted this! Thanks

Answer 1

Until the redtails get to be an adult size, you really don't have much to go on. Even then sexing is fairly well considered to be unreliable at best. Yes, the smaller could easily just be a weaker fish. Spawning is very, very rare outside of large commercial fish farms and the very few documented cases involve large groups in a large (100+ gallon) tank.
Hope this helps you along with them.

MM

Answer 2

Platies and guppies are ordinary; as livebearers, they're incredibly plenty constantly pregnant. the only thank you to maintain them no longer pregnant is to in no way, ever disclose them to men. Cories are egg layers and look further directly to reproduce with the aid of rains. (i think of it truly is by using the fact the fry choose cleanser water than the adults.) My cories used to spawn every time I replaced the water, yet stopped whilst summer season got here. So, i've got faith that it truly is a reasonable temperature *drop* that triggers them, no longer a upward thrust. i've got no longer ever saved sharks or speaking catfish, yet they're all cats like the cories, so it may be comparable.