Question about Celebes Behaviour—Flaring - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 5 Old 05-17-2012, 10:53 AM Thread Starter
Question about Celebes Behaviour—Flaring

This is quite possibly a stupid question, and if so, I apologize.

I have a small school of Celebes Rainbow (7). They all hang out together. One almost always seems to be flaring and darting around in the school. It looks quite spectacular! But I'm wondering what's up with it.

Is it a territorial thing? A mating thing? I've googled this and can't seem to find an answer.
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post #2 of 5 Old 05-17-2012, 11:17 AM
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It is likely the normal display behaviour of a male. Males are the more colourful and develop beautiful extensions to the second dorsal and anal fins. The plainer fish are females.


Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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post #3 of 5 Old 05-17-2012, 11:46 AM
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Look up furcata rainbowfish on YouTube.. The males of this related species are always displaying to each other, it's quite common with all small rainbows. This is considered a healthy trait, it improves their coloration and it's what they do in the wild living in groups.
Does he look like the only male? If there's multiple males then he's the dominant one.
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post #4 of 5 Old 05-17-2012, 12:53 PM Thread Starter
Looks like there are several males, actually. The one in particular flares at the others a lot of the time, and a couple others flare back on occasion. So I guess it's a dominance thing. He certainly likes to strut his stuff!
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post #5 of 5 Old 05-17-2012, 02:23 PM
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Large rainbows do this too. Males will often "battle", though it is very rare to ever see any damage. I agree, it's an indication of having healthy fish - enjoy the show :)

125 - BGK, chanchito cichlid, pictus cats, silver dollars, palmas bichir
125 - cichlids (severums, bolivian rams, chocolate), rainbows ( turquoise, red), loaches (angelicus, zebra, kuhli and horseface), plecos (BN, RL and clown), denison barbs, tiretrack eel, pearl gouramis, betta
90 - Congo tetras, african knife, upside down cats, spotted ctenopoma, kribensis, delhezzi bichir
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