Cory, neon... something very wrong

[fishwatcher]

I just got a peppered cory cat (yesterday). He's been fine until just little while ago. The lights were all off, and I went in to check on them. Well, when I turned on the tank light, the cory was on his side at the surface of the tank. A neon was a few inches below him floating on his side, too. Even after the tank light got turned on, neither moved. I got out my net to remove them, and as soon as I touched the water, the cory took off swimming and the neon kind of took off swimming. Here's a pic of the cory, though it isn't too good. He's the dark thing hanging in the corner of the tank. When I touch him though, he swims away like nothing's wrong, only to get back in that position 5 minutes later! What is going on!?!? (In an earlier post, I am asking help for a pH problem... it all of a sudden jumped to 7.2, when it's normally 6.4-6.6.) Other than the pH thing, all other stats are great. I did go ahead and do about a 25% water change, though.

PLEASE HELP!

After looking over the neon, I think it has popeye (this was the one with gill flukes a few days ago). I'm going to treat it with meds... hopefully it will pull through.
I do still need help with the cory though.
Thanks, in advance to any and all!

 

[BOD]

canr see a thing in that picture its just a blur....mayb your cory is just trying to settle in...im not sure about the PH thing someone else will be able to tell you if thats affecting him

 

[dream250578]

I have 4 cory cats Albino, Bronze and 2 peppered. When I originally got them though I only got the Albino, Bronze and 1 peppered. The single peppered used to act really strange always sitting in one spot and just generally acting weird, I want back to lfs and they told me to get another peppered I did this and this cured the problem. All the cory cats have been really happy for the last 2 years.

Don't know if this helps or not.

 

[dwarfgourami]

Sitting in one spot seems like normal cory behaviour, but flowtin on one side is a lot more worrying. Wish I could help.

 

[fishwatcher]

I believe now it is shock from a big ph change. my ph changed from 6.4 to 7.2 in less than 2 days. I belive it has been caused by adding an airstone (according to another post I've read). I'm going to do a lot of big water changes and hope that will bring it back to the normal range.
Thanks to all for your help!!!

 

[Dklepor]

Yah I think it is because of the pH primarily, but Cory's and other catfish alike NEED to have at least one partner in the tank or more at one time, maybe putting more in would help

 

[cowgirluntamed]

Actually, cories need at least 6 in a group. The more the better. They are a shoaling fish.

 

[gmc1]

This post is 11 years old

 

[DoubleDutch]

This post is 11 years old

Corys can get quite old hahahaha

 

[gmc1]

Hahaha