Hi, friends!
One of my multies got really inflated in just a matter of 10 to 12 hours. It was looking good in the morning and at night it was looking as you can see it on the pic! It seems to be dropsy IMO, but... why it developed so fast? It sounds as something really weird to me.
I have metronidazole but I don't know if I should use it in the main tank, in a separated one or not use it at all. Please, look on the pic the fish at the left side and tell me what do you think it is and what would you do being in my place. Thanks as always!

One of my multies got really inflated in just a matter of 10 to 12 hours. It was looking good in the morning and at night it was looking as you can see it on the pic! It seems to be dropsy IMO, but... why it developed so fast? It sounds as something really weird to me.
I have metronidazole but I don't know if I should use it in the main tank, in a separated one or not use it at all. Please, look on the pic the fish at the left side and tell me what do you think it is and what would you do being in my place. Thanks as always!
