Praecox Rainbowfish Tail Nipping

[zagreus]

Hi everyone. So I have ten praecox rainbowfish, 3 male, and 7 female. I've only had them about a month, and in that time, they have ALL had their tails nipped, I believe by the dominant male, whom I've named Moose. Everyone seems healthy and active and they do school peacefully sometimes, but when I rehomed two other aggressive males, Moose took over a corner of the tank under the water lettuce canopy and spends much of the day chasing all the others out. He doesn't nip or chase any other species in the tank, though. Questions:

1) Should I rehome moose, or let the school figure it out? I've seen folks say this is just praecox behavior.
2) Will the tails regrow? I can't find info about that on this species.

Other fish in tank are peaceful bottom dwellers: a peacock gudgeon pair, two female bristlenose plecos, reclusive shrimp and snails. 37 gallons (might rehome a pleco but so far they're friendly).

Thanks, all!
Roy

 

[GenF211]

I have two males, one dominant (Sharky), and five females. I haven’t seen any nipped Finn’s. I do have A lot of plants and hard scape for them to hide though. Can you show a picture of your tank? Maybe they need more hiding spaces?

 

[zagreus]

I have two males, one dominant (Sharky), and five females. I haven’t seen any nipped Finn’s. I do have A lot of plants and hard scape for them to hide though. Can you show a picture of your tank? Maybe they need more hiding spaces?

Thanks, that's quite comparable! here are some pics. It's pretty landscaped, and they do hide and rest in the nooks often. Moose patrols the top left.

 

[GenF211]

Wow! That is beautiful. Definitely enough hiding spots! My male hides most of the day, but in the morning the females seem to enjoy the chasing. Maybe just keep your eye on it. If it gets worse rehome.

 

[zagreus]

Wow! That is beautiful. Definitely enough hiding spots! My male hides most of the day, but in the morning the females seem to enjoy the chasing. Maybe just keep your eye on it. If it gets worse rehome.

Aw thanks My big sad is that I scratched the glass front and center in a couple spots pulling out that giant driftwood to clean the other day

I'll keep an eye on them. I'm leaning toward rehoming Moose but I've already rehomed two others, when will it end?! Will each male just replace the last aggro male?

 

[GenF211]

I can say for the first few months, I thought the females were being terrorized. But as I watched longer, they are just fine. At times they all shoal around together, and I feel they are happy with their pack. Like I said though, no fin nipping. That would change my opinion big time.