just looking at the fish before, neons, rummies, glo lights a few of them all seem to have white on the adipose fin the very small one before the tails on the top of its back but not all have it, even some some of the fish that have white on all fins like glo lights for example some of them have nothing wrong with the fins they seem fine but have the white on all fins even one of the glo lights the white is very bright like stands out,
the rummies are shoaling at the back of the fin and because of their white shiney skin its like they have a white outline all down there back but when they come close ya cant see it so its just their skin,
the harlequins have no white or anything they all seem fine,
the neons one has a lump which is the same colour red on the back end of its body just before the start of the caudal fin/ tail fin this one has always looked like its had something wrong as its right gill is weird its like its grown into the body or its just a short gill because you can see its flesh by the gill i am crap at explaining things sorry, this also doesnt have a complete black eye its like silver or white faintly i can tell this as the other eye is complete black, but this isnt the one i mentioned a few days ago with having a 1 white eye what could this problem be? i feel like i wanna take all neons out the tank and put the down as i dont like to have fish who have there own name disease but still think its cruel but dont want them ruining all of the tank but shall i just keep them in the tank until they just natural die or die with disease :/ ?
i dont even think saying the fish have ragged tails is right as that could come across as if theres loads of slits in the fins and its not like that its only the anal fins on some of the fish that have a piece missing and as you said this could be nipping, only thing is with the rummies as i never really see them nipping, to be honest i only ever see my tank when i am going the toilet or getting a drink etc, i dont sit downstairs much but now and then i do look at it even that sounds like i am not interested in the tank lol but as i said its hard to explain or to get your point across on the internet,
i will take a video clip later if its good quality to see if i can get the fish in as its too hard to take pictures, i also have ocd etc so obviously i think most things are a problem etc which is annoying
edit i will take the video clip when its dark as the quality may be better and this is the link i got all the fin names from
http://www.thedivingblog.com/wp-content/uploads/2010/04/fish_fins.jpg