I have a danio that looks to me like it has dropsy. I have quarantined it from the rest of the tank but now I’m really analyzing the rest of my fish to see if I see any early signs. I have danios, gouramis and fancy guppies in the tank. My gouramis are looking a little bloated to me (they did recently eat) but other than that everyone is acting normal from what I can see. Should I treat the rest of the tank just to be cautious? Is there anything to do for my sick danio? I assume it is advanced dropsy because it looks like the fins are pineconing severely. I’ve never dealt with dropsy before.
Nitrate: 20
Nitrite: 0
Hardness: 0
chlorine: 0
Alkalinity: 0
PH: 6.8ish
Temp: 71 degrees
Sorry in advance for the awful photos of the danio. It’s a quick and active little fish! Thank you so much for the help!