Guppys Tail Gone Ill? Or Bullied?

[Ginty]

I got up this morning and noticed this on my guppy. Is this a desease or has it been nipped.
I have 3 danios. Could these be the cause?
Ive noticed them chasing eachother lately but i havent noticed them attacking my guppies. I have 2 guppies.

https/www.dropbox.com/s/xq8inz4k9smwl23/20141228_153840.jpg?dl=0

https/www.dropbox.com/s/t3hexe0yzeakamx/20141228_153908.jpg?dl=0

https/www.dropbox.com/s/zazazwwumljzqnr/20141228_154031.jpg?dl=0

https/www.dropbox.com/s/tqxscv68eaksgi0/20141228_154109.jpg?dl=0

https/www.dropbox.com/s/qd8dfgfj6j6nbls/20141228_154120%280%29.jpg?dl=0

https/www.dropbox.com/s/1mofhdvss8h4am2/20141228_154120.jpg?dl=0

I cant notice any signs of illness but i noticed this fish has been a bit quite the last couple of days. The guppies are normally together and this one seems to be on its own. He is eatting though.
Ive put him in a breeding box on his own.
Will this tail grow back?
Any advice or help needed pls.

 

[fish48]

tail may grow back, There fins have been badly nipped, 

 

[Ginty]

tail may grow back, There fins have been badly nipped,

Ive tried to supply lots of pics so you all good tell whether it was a desease or nipped.
It is only the tail that has been nipped and it is very bad. Do you think he will survive? He is looking very frail but is eatting

 

[Ginty]

Could fin rot happen this quickly?

 

[eaglesaquarium]

Fin rot happens slowly, over a period of a few days to weeks.  Generally, that is due to a lack of maintenance, and would be showing signs in other fish as well.  
 
 
The key to health for the fish to recover and regrow their tail, is that they need clean water.  If you are using a breeding box, those can sometimes not have great circulation.  So, you'll want to pour tank water into the top of the breeding box multiple times a day to keep the water moving in there.  
 
If you have a QT, that would be better.

 

[Byron]

I agree this is most likely fin nipping.  That needs to be addressed too, or it will just continue.  Once a fish decides to nip other fish, they are not going to change, though sometimes vastly improving the cause may help.
 
I don't know the other fish in this tank, but danios are mentioned and with only three this could well be the source.  Danios are cyprinids, and like most all cyprinid species they are shoaling fish and must be kept in groups.  Six is usually mentioned as the minimum, but when space permits more is always better.  But three is really pushing things.  Shoaling fish need to establish an hierarchy within a significant sized group.  But in addition, not having a group means the fish are likely insecure, and this causes stress.  And studies have now proven that stress usually triggers increased aggression.  The fish is frustrated and has no other method of "fighting back," in a sense.
 
Aside from the physical aspect, there is a chemical one too.  Fish release pheromones and allomones; the latter are at work here, as these chemical signals are picked up by other species.  The danio, especially the one doing the nipping (could be one, or all on and off), are releasing allomones that have much the same effect on the other fish...fright.  Separating the species is the best course of action.  Increasing the danio may help, or it may continue now that it is started.  If adding more (due to tank space) is not an option, nor separating them in different tanks (the guppy in the net is obviously reading the allomones regardless so it is still under stress), perhaps you could return the danio or re-home them.
 
Byron.

 

[Ginty]

I agree this is most likely fin nipping.  That needs to be addressed too, or it will just continue.  Once a fish decides to nip other fish, they are not going to change, though sometimes vastly improving the cause may help.
 
I don't know the other fish in this tank, but danios are mentioned and with only three this could well be the source.  Danios are cyprinids, and like most all cyprinid species they are shoaling fish and must be kept in groups.  Six is usually mentioned as the minimum, but when space permits more is always better.  But three is really pushing things.  Shoaling fish need to establish an hierarchy within a significant sized group.  But in addition, not having a group means the fish are likely insecure, and this causes stress.  And studies have now proven that stress usually triggers increased aggression.  The fish is frustrated and has no other method of "fighting back," in a sense.
 
Aside from the physical aspect, there is a chemical one too.  Fish release pheromones and allomones; the latter are at work here, as these chemical signals are picked up by other species.  The danio, especially the one doing the nipping (could be one, or all on and off), are releasing allomones that have much the same effect on the other fish...fright.  Separating the species is the best course of action.  Increasing the danio may help, or it may continue now that it is started.  If adding more (due to tank space) is not an option, nor separating them in different tanks (the guppy in the net is obviously reading the allomones regardless so it is still under stress), perhaps you could return the danio or re-home them.
 
Byron.

I completely understand what you are saying. To be honest i didnt want zebra danios. I only got them after my fishless cycle was complete as they are a hardy fish. The man at the aquarium shop said if the danios die then im doing something severly wrong. I only got three because i was told if i get 6 they could become a pack (like dogs) and bully other fish.

Ive had them about 9months.
I do a water change every Sunday or every 10 days atleast.

I have a 30litre tank also with 7month old plattys in. 4 of them.

Should i put them in with them?
The only reason i havent is just incase it is a desease. I cant see any markings or signs of desease though, other than the gashes missing out of the guppues tail. He seems to be eatting well. But is looking very skinny.

 

[Byron]

The guppies and platies will live together, though a 30 litre tank will soon be too small for all these, but you probably know that anyway.
 
I don't think this is a disease issue, but I am certainly no expert in disease.  If you sit motionless for a time and observe the fish, can you see any signs of bullying from the danio?  You need to be absolutely motionless so the fish forget you are there; any hint of you being present usually distracts them as they associate that with food or whatever, and "normal" interactions may not occur like they do when you are not present.
 
Byron.

 

[Ginty]

Yes i am aware it is too small. My aim was to put the babies in the bigger tank but im going to leave until im 100% certain there are no deseases in the tank. I dont want to risk killing them as ive raied them from fry.


Ive noticed one of my danios is being aggresive to the other danio but when they stoo and go vehing plants etc it impossible to tell which one it is.

My injured guppy is still alice and swimming around and eatting. Ive noticed some of his tail has fell off. Would that be because it was seriously injured? Ie. If i cut through the majority of my finger if not treated it would probably fall off.
https/www.dropbox.com/s/vd3rd88tqzse27n/20141229_193210.jpg?dl=0

https/www.dropbox.com/s/bweu7c8zzhk7rx6/20141229_193219.jpg?dl=0


https/www.dropbox.com/s/5l0rdgzr51hm1jc/20141229_193221.jpg?dl=0


https/www.dropbox.com/s/mt5ass58grkrelb/20141229_193225.jpg?dl=0

 

[Byron]

I would keep a close eye on the injured fish.  I don't see any issue in the photos, but with fin nipping you have to be on the lookout for possible infection and/or fungus issues.  But don't treat for these unless clear symptoms appear.  Medications are stressful to fish at the best of times, and if the fish is already under stress (as here) the last thing you want is to add more when it is not necessary.

 

[Ginty]

Ok. I could see the broke bits in small strips in the bottom of the breeder box.

I am keeping a close eye on him and im going to buy a small tank today and put an air supplied air filter in it.

 

[Ginty]

Ive just seen one danio chasing my swordtail. Im not sure what to do with this fish. But i cant have it hurting my other fish.

 

[eaglesaquarium]

2 options:
 
1 - rehome the danios
 
2 - get more danios
 
 
Depending on the size of your tank and stocking, which one is the best option.  There's really no 3rd alternative, if you want to stop the bullying.

 

[Byron]

I agree.  As I believe I mentioned previously, this is an expected behaviour from too small a group.  And remember that even if more are added, it may well continue now that it has started.  You really only have the one option, to separate out the danios.

 

[Ginty]

My guppy is doing well and his tail is starting to grow back a little bit. I have given the zebra danios to my local aquarium shop. My guppy is back swimming with his brother and he hasnt hid behind the filter once. When i had the danios and i released him out of the hopsital tank for an hour he just hid behind the filter. So i put him back in the hospital tank.