rummy nose sobers up over night… is that normal???

[Magnum Man]

I’m watching my fish wake up this morning ( early meetings on Tuesdays )
until tomorrow, I only have one rummy left, and while it’s nose is normally bright red, at 1st light, there is no color in it’s nose, it’s the same color as it’s body, I almost didn’t recognize it, in with the rest of the tetras, except it still has it’s tail coloration… just wondering if that’s normal, anyone ever noticed that??? or perhaps an adaptation of being a sole member of the shoal???

with it’s light turned off…

it normally looks like this… ( picture from a few days ago )

 

[Magnum Man]

that and I always find it interesting when fish wake up… some just burst forward, ready for the day, and some sleep in sometimes even an hour after the full lights are on…

 

[Magnum Man]

20 minutes later, this morning, about 1/2 the color back… and the cardinals just starting to wake up…

 

[Essjay]

Some fish change colour when they are 'asleep'. In the past I've had green neon tetras (P. simulans) which were brown in the dark, and dwarf pencilfish (N. marginatus) which had vertical stripes in the dark and horizontal stripes when they woke up. Is this the case with rummy noses?

 

[GaryE]

I'll leave identifying which rummy nose you have there to people who aren't running out the door. It's an interesting observation.

 

[Back in the fold]

My lone female Angelfish changes colors depending on her mood . She will go from a washed out silver to having velvety deep black bars in minutes at times .

 

[Innesfan]

I'll leave identifying which rummy nose you have there to people who aren't running out the door. It's an interesting observation.

Pretty sure it's Petitella bleheri. All three rummies can periodically lose their rummy noses. The original rummy, P. rhodostoma, and the only one we had in the hobby until the mid '60s, is the most labile in this regard and only shows a bright red snout when it feels like doing so. P. bleheri and P. georgiae are more consistently red-snouted.

 

[MattW]

Different rummy, but my eldest rasbora who is reaching the end, has lost his red hue. It's more of a light orange colour now.

 

[Magnum Man]

bright red, mid day… added 6 more today, none of which had red noses in the bags, but all have colored up, once in a tank…
the ones I had, and have gotten, are all supposed to be Hemigrammus rhodostomus

 

[Innesfan]

bright red, mid day… added 6 more today, none of which had red noses in the bags, but all have colored up, once in a tank…
the ones I had, and have gotten, are all supposed to be Hemigrammus rhodostomus

They're called Petitella rhodostoma now. And I doubt they are P. rhodostoma given what you describe. They'd be more fickle about coloring up and the red is weaker and does not spread over as much of the head as in the photo of the one you had first. Vendors and websites consistently get these three mixed up.

P. rhodostoma

P. bleheri

P. georgiae--note different caudal and peduncle markings.

 

[Back in the fold]

The Petitella bleheri is a lovely creature .

 

[Innesfan]

The Petitella bleheri is a lovely creature .

Yes, so lovely that it is the only one being farmed which is also why it's the one we most commonly see these days. Sadly, the farming has led to color morphs--albino, platinum etc--as if the original wasn't gorgeous enough.

 

[Magnum Man]

yes, confirmed… the 1st of the group of rummy’s stumbles out of bed, with no make-up… this picture taken a few minutes after the tank lights begin coming on… she hasn’t “put on her face” yet…