bought 2 male C Irrubesco yesterday from LFS, very gradual acclimatisation. Tank temperature 28 degrees (I've now turned that down)
Extra airstone in situ
Ammonia 0
Nitrite 0
Nitrate <10 mg/l
Ph 7.6
The 15 gallon tank has been fully cycled for the last 4 months with no previous record of diseases etc in previous tank inhabitants. Fluval 2 filtration.
Undertaken 50% water change.
My parameters are the same as the LFS
They didn't feed yesterday and I was unduly worried considering they had the shock of being moved to the new tank from the LFS. They were swimming about fine yesterday and this morning they seemed a bit dopey but moving.
They are now laying at the bottom of the tank and look like they are gasping for air. They are lethargic and when they do swim it looks like they are drunk a bit.
I'm really worried. Can anyone throw any suggestions my way please?

Some call it a product of a mis-spent youth, I call it Rock n Roll ! 