Poorly Neon Tetra Ntd?

[emmaisaguppy]

I introduced 6 neon tetras into my tank on sunday. A few hours later I noticed that one of them had lost some of it's orange colour from it's belly. This has since returned but now he has another problem (I am quite sure it is the same fish!). When he stops swimming his boddy tips so that he is standing on his head.

I am wondering whether, given the fact that his colour returned, he could possibly have NTD or some other kind of illness.

He looks very normal other than his strange a swimming now.

Other fish I have in my aquarium are guppies and rams.
I had water tested before adding the new fish - everything was 0 except amonia which was medium on the scale (so I did a 30% water change as advised)

Any advice / diagnoses / treatments would be really greatfully recieved!

Emma

 

[WILDER]

Neons don't have a orange belly, they have a red stripe.
Fish will go pale with stress if the ammonia reading insn't 0.
Being pale is a sign of stress and it sounds like the fish has swimbladder.
Has the fish also bloated up in the tummy region.

 

[Underwurlde]

Neon tetra disease??? - over to you W...