a few pics:
Blacknose Dace Turned Orange
Started by
Guest_dsaavedra_*
, Feb 13 2009 08:41 PM
14 replies to this topic
#1
Guest_dsaavedra_*
Guest_dsaavedra_*
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Posted 13 February 2009 - 08:41 PM
about 30 minutes ago, the lateral stripe on my biggest blacknose dace turned bright orange. i've heard of others' blacknose dace doing this, but this is the first time i've seen it. it was quite weird. he stayed orange for about 15 minutes, and the whole time he was very aggressive to all the other fish. what causes them to turn orange?
a few pics:
a few pics:
#3
Guest_mikez_*
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Posted 13 February 2009 - 10:04 PM
To be exact, a sudden on-rush of 11-ketotestosterone, a very potent androgen hormone. He'll probably shift more into that aggressive, highly colored mode in the near future.
Well that wording took all the fun out of the answer I was gonna give, but...yah, what he said.
#5
Guest_dsaavedra_*
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Posted 14 February 2009 - 09:33 PM
he's orange again.
when he's orange, he RULES the tank. he doesn't let ANYBODY get in his way. there was even this one time where he just rocketed off to the other side of the tank, the fastest i've ever seen any fish swim in here. it was weird because he wasn't chasing any other fish or anything, just swam to the other side at the speed of light.
is he getting in a spawning mood or what? why is there an onrush of 11-ketotestosterone?
when he's orange, he RULES the tank. he doesn't let ANYBODY get in his way. there was even this one time where he just rocketed off to the other side of the tank, the fastest i've ever seen any fish swim in here. it was weird because he wasn't chasing any other fish or anything, just swam to the other side at the speed of light.
is he getting in a spawning mood or what? why is there an onrush of 11-ketotestosterone?
#6
Guest_smbass_*
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Posted 14 February 2009 - 11:45 PM
If you have two evenly matched males size wise things get really interesting, and the best part is despite their intense chasing of one another they don't ever seem to do any physical harm to one another or anyone else in the tank.
#8
Guest_dsaavedra_*
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Posted 15 February 2009 - 12:44 PM
yeah i have two males that are both about the same size, and it sure is fun to watch them fight. i like it when to start doing tight circles around each other.
so do you think if i had a female in here they would try to spawn?
so do you think if i had a female in here they would try to spawn?
#13
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Posted 17 February 2009 - 10:51 AM
the only opening is where my filter is, and theres really no place for them to escape there. when i feed them flakes, i'm always scared the dace are going to jump out of the tank, because they are always the first ones to the surface, and they rush up there and splash a lot of water. so i have to close the lid quickly after i drop flakes in.
Edited by dsaavedra, 17 February 2009 - 10:51 AM.
#14
Guest_dsaavedra_*
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Posted 20 March 2009 - 04:59 PM
my dace are bright orange almost all of the time now, and its getting really annoying. they're being mean to all the other fish, and driving them all to one side of the tank.
and whenever i try to feed my sunfish individually, they dace end up taking the food which is annoying also.
whats the deal?
and whenever i try to feed my sunfish individually, they dace end up taking the food which is annoying also.
whats the deal?
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