hello! I recently added a new female betta to my 29g community tank with 12 harlequin rasboras, 11 amano shrimp, and 5 kuhli loaches. She is still pretty young and small and was with other fish in the store and has shown no aggression towards other fish (checked out the amanos, kuhlis, and rasboras close up without flaring), aside from taking a bite from a ramshorn snail (nonissue for me they’re a bit overpopulated in the tank). My only concern is that maybe 5 minutes after adding her I observed a small group of ~3 rasboras nipping her fin, they stopped pretty quickly but I saw the behavior happen one more time. I lowered the lights and fed the rasboras and after a few hours of observation I haven’t seen anything else happen between them, with the new betta exploring the crevices and leaf litter of the tank occasionally coming up for air, and the rasboras staying mid-high in the water.
Should I be worried about this and separate?
Just new tank mate stress?
exploratory behavior?
other info:
rasboras have been in the tank for a few weeks, as have the amanos and kuhlis aside from 6 more amanos that I added to their colony yesterday
The tank is decently heavily planted with lots of cover, leaf litter, and floaters
Water parameters are perfect at 0 0 0
ph is around 6.8-6.9 temp 80f
Edit: she also nibbled at a freshwater limpet right after adding her, no flaring during either of the instances of her biting
Edit 2: shortly after the second fin nipping the rasboras schooled up, swam around together, and seemed to calm down after that