Have these fish even breen bred successfully in captivity before? Without hormone injection.

[AndrewClarksoNS1]

KA Gaming Deep Fishing​

I agree with this. With RTC and TSN, the biggest challenge is usually not getting them to mature but providing enough space and stable conditions for natural behavior. Once fish reach that size, a standard home aquarium becomes limiting very quickly. In my experience, large ponds also make it much easier to maintain water quality and give the fish enough room to establish territory and breeding behavior.

Absolutely, that’s been my experience too. What really fascinates me is how different their behavior becomes once they have enough space—especially when they can establish territories naturally instead of constantly bumping into each other. I’ve also noticed ponds seem much more forgiving when it comes to water quality. Have you had any particular success with RTC and TSN breeding in a pond, or is it mostly about giving them the right environment and letting nature take over?

 

[Fanatic_Fish_Lunatic]

No ...both species need a specific migratory breeding path that cannot be present in ponds ...you need a race

Yeah, that's what I thought. (Datnoid too?)