3 corys lost in 2 days

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crtwin

Aquarium Advice Newbie
Joined
Aug 27, 2013
Messages
2
Hey all,
Background info is that I just upgraded and stocked my tank (now a 25 gal) and had 5 corys of various types, one friendly female betta 3 honey and 1 powder gourami. So yesterday day ago I noticed that my 1 ½ year old leopard cory was sick. His entire nose was white as if the tissue was dead and his barbells were shrunken and shriveled up. I went to my LFS and grabbed some artemis microbe-lift to treat what I thought was columnaris. I also grabbed voogle ultimate immune booster and treated the water according to label with both yesterday afternoon. A few hours later I found the cory who had been having trouble swimming and I had seen resting on his side dead. The betta appeard to have a white spot behind her gills by the section where her front fin connects, I saw this previously and thought it was damage from the tank change. Today right after treating the water again I found my julli cory dead, and two hour later my green cory dead as well, both looking completely normal and healthy. Thoughts? I’m worried I might lose the whole tank at this point.
Thanks so much to anyone with ideas
 
Hello all

More information.
Current water readings are: Nitrate 20, Nitrite 0, Chlorine 0, KH 80, pH 6.8, Temp 78F.

Also, here are some more pictures. My female Betta didn't make it.
img_2630741_0_6a81e83b432d8c652bc0eb1d7758dd46.jpg

img_2630741_1_0799cc9be57c06b648c623d52f577977.jpg

img_2630741_2_4b671ebb3db85611fa2c093615e5f299.jpg


Thanks again for your help.
 
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