Sick Pearl Danio

Hello,

Since I dont have a quarantine tank I bought and introduced two juvenile pearl danios to an aquarium with already four of them. Both of them got sick pretty soon turning pale, swollen, lost appetite and with fast breathing and spasms. They died and the other three adult males did too after a while. Now this female has been having the same symptoms for a couple days. Notice the weird scale shape on the video.

Any idea what can it be? I started treatment with esha 2000 but it didnt work on the last one.

Need pictures and video. the video you posted doesn't work

Trying again with the video I can add pictures later

ivanfral said:

Trying again with the video I can add pictures later

Click to expand...

Not an expert but she looks like she's pine coning, it may be too late to save her and could be kinder to humanely euthanise but wait for other's feedback first! No idea on the cause but sounds like the new fish have potentially introduced something pretty devastating into your tank. Sorry you are going through this!

Videos need to be uploaded to a video hosting site such as YouTube and the link posted on here.

Here are some images. Here is the video in YT

bad case of dropsy, euthanise it because there's no cure.