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The two Pearl Danio's - who are the only fully grown in the tank - both have a white bottom lip.

Is this normal? Is it something to do with maturity or breeding or something? I am fairly sure that it is not fungus, it hasn't grown lately, and none of the other fish have anything like that anywhere on their bodies!

x

Mallaikah.., Perls have bottom lip slightly whitish but its not so visible as it is in your case. I thinks it looks that way because they have the bottom lip bit protruding to easily catch insects on the surface.

I think it is something to do with maturity. I used to have pearl danois that did this. ANd i have black skirts that are full grown that have black stuff on the mouth?? i think its an age thing.

Hey Malaikah

Danios and White Clouds are both cyprinids and I can tell you that my males always have something going on with their lips . Often times, they will get bright cherry red and other times, they develop what looks like a hard white callus. I think it is from the aggression related to their fight for dominance. They really ram each other hard, enough for scales to get a little messed up. Imagine how hard this is on those lips.

Here is "Jaws" my male white cloud as seen in the profiles. He has the biggest tendency to get these red and white lips and he is the most aggressive. None of my females gets either.

[link=Jaws Pic]http://www.fishprofiles.com/interactive/photos/gallery.asp?id=whitecloud_profile&page=40153CE93BE4420533D64D228891AD4A9864AC5890BD8EEA358D9E88A9029531" style="COLOR: #C000C0[/link]

Thanks for those replys!

I've been trying to study their bottom lip (not too easy given their usual activity speed!) and the two largest look as if they have been dipped in flour. I was rather concerned but as no-one else in the tank is showing anything remotely similar i have breathed a sigh of relief!!
I did make a guess that they were a male and a female due to body shape and markings (one was leaner and had red markings on some fins, with the other being more rounded with not as striking fin markings) but maybe it is just a male thing.
Either way I am relieved that it isn't out of the ordinary

x

wow, none of my danio's have issues like that. they do play a lot, but not quiet as rough as I've seen them towards a threadfin I put in their tank once, specially those blue danio's, they have a very different personality from that of my zebra's and gold danio.