Originally Posted by shellieca
How big is the tank? If I understand correctly you have some kind of pass through for the tetras to go through but you don't think a Betta can? I'd be VERY skeptical about something like that as Bettas can & do try to through things that are too small for them then they get stuck & die or severely injured. As for the male being stressed, its always a possibility. I'd keep an eye out for color fading, nips or tears in his fins, lethargy, loss of appetite, hiding.
Hey, thanks for replying!
The net is very safe, here's a pic of my tank:
He is very happy, he eats well and all that, I guess he just chases them for fun occasionally. They certainly don't mind, as they are super fast and they tend to be on his side of the tank more often than on the females. By the way, the neons swim much more freely now than yesterday.