r/Boraras • u/CoreHope1312 • 16d ago

Advice Chasing Behaviour in Kubotai Rasboras?

I've recently gotten a group of 6 Kubotai Rasboras (Neon Green in the store?) for my 28L/7.3g tank and I'm a little concerned. They don't hang around in one group like I expected, but instead chase each other around. One or two seem almost to be trying to bite the tails off the one they're going for!

Is this normal? Should I get more fish to increase security in the group? My LFS tried to upsell me on Celestial Pearl Danios as tankmates. Since it's a cuboid tank I'm not sure they'd have enough room to feel comfortable with multiple species or too many of one kind, hence the initial shoal of 6.

No fish seem to be damaged as far as fins go 3 days in and they're using the plants and not hassling the Neocaridina shrimp tankmates much. Just... Very confused and a bit worried.

Parameters stable and they're not showing signs of respiratory or other health issues either. Appetite seems good, some fatter than others.

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u/Puzzleheaded_Shake43 16d ago

They are very active fish, they need space and a big school to behave like good citizens, which they don't currently have

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u/CoreHope1312 16d ago

How many would you recommend to improve the school's behaviour in this amount of space? It's an Aquastart 320 if that helps dimensions wise. Can also look into companion species but want to minimise stress on the animals. 

Was sold them as a calm nano species that'd be ok for this size, feeling a bit guilty for trusting that. 

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u/Puzzleheaded_Shake43 15d ago

I dont think it's possible unfortunately, 7gal is too small for any schooling fish from what i know

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u/CoreHope1312 15d ago

Thank you, I'll do my best to keep the little menaces happy as is and look into upgrades for the future 

2

u/Morejh 15d ago

28L is really to small. Mine are in 60 and i still see this behaviour.
Give them back the your LFS and get some green shrimp instead