is thier something wrong with my cardinal tetras??

joe the pleco · 08-14-2007, 10:49 PM

I got 5 cardinal tetras two days ago and I have noticed that, at night thier red strip is almost gone and their 'blue strip' turns purple..
Is their something wrong? Or will this pass when they get older?

Thanks for help

rodney · 08-14-2007, 10:56 PM

At night my lemon tetras go from bright yellow to almost clear, I think thats nomal...But I have never kept cardinals so im not sure.

joe the pleco · 08-14-2007, 11:03 PM

Thanks Rodney,
I thought it was normal (ish), 5 minutes later they go back to normal colours strange

.

Storm_Rider · 08-15-2007, 02:42 AM

some weird type of camouflage maybe? mine do the same thing, but they retain their bright colors during the day even though i have them on white substrate.

evercl92 · 08-15-2007, 03:28 AM

mine are super bright during the day.
If I turn the light on, after it's been off a while, they are almost white

supaflyz · 08-15-2007, 07:56 AM

I think its taking a step toward evolution. J/k lol yeah they usually turn pale when you turn the light off, the color comes back when they are more active swimming around.

Skyline123 · 08-17-2007, 11:05 PM

My neons when at night and the lights are turned off, they look white with no color almost. Once day comes and the lights are turned on, they get their color back within 5 to 10 minutes. I think it should be the same with cardinals.

zackish · 08-18-2007, 03:57 AM

Quote:

Originally Posted by evercl92

mine are super bright during the day.
If I turn the light on, after it's been off a while, they are almost white

Mine too and mine have been perfectly healthy for 2 months. sometimes it is the way you look at the fish too because of the way the light hits them.

If I am standing up and looking at my fish downward they look kind of pale. If I stoop down eye level to them you can really see the color stand out nice and bright.

triple red · 08-19-2007, 02:58 AM

their "lights" turn off at night....i dont know the scientific explanation for it but i know that is what happens..
perfectly normal

**bsmith782** · 08-21-2007, 05:30 PM

you know how you can tell if someone just woke up by the way they look, its kinda the same thing for the cardinals. and yes mine do the same thing and have been doing it in the same tank for over 2 years, its normal.

ianmason · 08-24-2007, 11:26 PM

My, 13 do exactly the same. No worries!

joe the pleco · 08-24-2007, 11:36 PM

Lol Thanks guys, my neons never did this, but i see now that they do it every time and then go back to their original colours

08-14-2007, 10:49 PM	#1 (permalink)
joe the pleco Algae Grower (View User Tanks) PTrader: (0) Join Date: Jul 2007 Location: brighton Posts: 98	is thier something wrong with my cardinal tetras?? I got 5 cardinal tetras two days ago and I have noticed that, at night thier red strip is almost gone and their 'blue strip' turns purple.. Is their something wrong? Or will this pass when they get older? Thanks for help __________________ 46 Gallon- 5 Glowlight Tetras, 5 Cardinal Tetras, 3 Zebra Loach, 4 Bronze Cory, 3 Ottocinclus, 1 Red-Tailed Black-shark, 1 Bristlenose Ancistrus, 2 Kribensis, 4 Golden Wonder Panchax, 2 River Shrimp. "I've never had any problems with 'Impulse Buying". They're just fish that I forgot I had planned to get." You say 'potatoes' We say 'tomatoes'

08-14-2007, 10:56 PM	#2 (permalink)
rodney Planted Member (View User Tanks) PTrader: (0) Join Date: Apr 2007 Location: Illinois Posts: 265	At night my lemon tetras go from bright yellow to almost clear, I think thats nomal...But I have never kept cardinals so im not sure. __________________ 10 gallon. 20 gallon long low light garden.

08-14-2007, 11:03 PM	#3 (permalink)
joe the pleco Algae Grower (View User Tanks) PTrader: (0) Join Date: Jul 2007 Location: brighton Posts: 98	Thanks Rodney, I thought it was normal (ish), 5 minutes later they go back to normal colours strange. __________________ 46 Gallon- 5 Glowlight Tetras, 5 Cardinal Tetras, 3 Zebra Loach, 4 Bronze Cory, 3 Ottocinclus, 1 Red-Tailed Black-shark, 1 Bristlenose Ancistrus, 2 Kribensis, 4 Golden Wonder Panchax, 2 River Shrimp. "I've never had any problems with 'Impulse Buying". They're just fish that I forgot I had planned to get." You say 'potatoes' We say 'tomatoes'

08-15-2007, 03:28 AM	#5 (permalink)
evercl92 Planted Tank Obsessed (View User Tanks) PTrader: (13) Join Date: Aug 2006 Location: Columbus, OH Posts: 490	mine are super bright during the day. If I turn the light on, after it's been off a while, they are almost white __________________ Check us out: http://2slowracing.com/

08-15-2007, 07:56 AM	#6 (permalink)
supaflyz Planted Member (View User Tanks) PTrader: (0) Join Date: Apr 2006 Location: Houston, Tx Posts: 169	I think its taking a step toward evolution. J/k lol yeah they usually turn pale when you turn the light off, the color comes back when they are more active swimming around. __________________ 180 gallon RR wild discus, rcs, amano, cardinals, rummynose, harlequins, pleco, congos, rainbows tank 4x54 tek lights eheim 2260 pressurize c02 150 gallon RR angel fish, rainbowfish, and silver dollars tank eheim 2250 shop lights 30 gallon shrimp tank eheim 2217 oddysea lights

08-15-2007, 02:42 AM	#4 (permalink)
Storm_Rider Planted Tank Enthusiast (View User Tanks) PTrader: (7) Join Date: Sep 2006 Location: San Jose, CA Posts: 520	some weird type of camouflage maybe? mine do the same thing, but they retain their bright colors during the day even though i have them on white substrate.

08-17-2007, 11:05 PM	#7 (permalink)
Skyline123 Algae Grower (View User Tanks) PTrader: (0) Join Date: Aug 2007 Location: Ontario, Canada Posts: 25	My neons when at night and the lights are turned off, they look white with no color almost. Once day comes and the lights are turned on, they get their color back within 5 to 10 minutes. I think it should be the same with cardinals.

08-19-2007, 02:58 AM	#9 (permalink)
triple red weed killer (View User Tanks) PTrader: (13) Join Date: May 2005 Location: naugatuck,connecticut Posts: 713	their "lights" turn off at night....i dont know the scientific explanation for it but i know that is what happens.. perfectly normal __________________ 30 gallon pita...102watts..pressurized co2 ...jbj regulator...eco-complete substrate...xp-2... inline c-02 reactor...turbo twist uv

08-21-2007, 05:30 PM	#10 (permalink)
bsmith782 Anubis-X (View User Tanks) PTrader: (74) Join Date: Jan 2007 Location: St.Louis, MO Posts: 1,966	you know how you can tell if someone just woke up by the way they look, its kinda the same thing for the cardinals. and yes mine do the same thing and have been doing it in the same tank for over 2 years, its normal. __________________ FilStar proponent #91 I have a 2213 too and my Eheim # is 299. What now? cube and mini-m http://www.plantedtank.net/forums/pl...be-mini-m.html VP Member #4 "Regulator's Mount Up"

08-24-2007, 11:26 PM	#11 (permalink)
ianmason Algae Grower (View User Tanks) PTrader: (0) Join Date: Sep 2006 Location: Bracknell, UK Posts: 61	My, 13 do exactly the same. No worries! __________________ www.ianlloyd.net 55g Cichlid tank 21g Planted tank See my tank HERE

08-24-2007, 11:36 PM	#12 (permalink)
joe the pleco Algae Grower (View User Tanks) PTrader: (0) Join Date: Jul 2007 Location: brighton Posts: 98	Lol Thanks guys, my neons never did this, but i see now that they do it every time and then go back to their original colours __________________ 46 Gallon- 5 Glowlight Tetras, 5 Cardinal Tetras, 3 Zebra Loach, 4 Bronze Cory, 3 Ottocinclus, 1 Red-Tailed Black-shark, 1 Bristlenose Ancistrus, 2 Kribensis, 4 Golden Wonder Panchax, 2 River Shrimp. "I've never had any problems with 'Impulse Buying". They're just fish that I forgot I had planned to get." You say 'potatoes' We say 'tomatoes'

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