I would think so. Both of those fish are pretty peaceful schoolers, so I don't see why they wouldn't be compatible. As long as the furcatus can't fit in the mouth of the lacustis, then you should be good... and most rainbowfish are known for having smaller mouths/throats for their size.
1 - 3 of 3 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.