Gulper catfish weird disease......

[123supa789]

Hi everyone! i bought a gulper catfish last week and it very active.It swims around the tank all day and eating well. 2 days ago i put nothing in the tank but when i looked back this morning, Its belly get very big although it eating nothing ( i'm 100% sure nothing inside the tank). Its belly blow very big for 3-5 mins then it start to become normal, Any idea guys ?

 

[thebiggerthebetter]

I bought three gulpers some months back. I've seen one of them do the same thing after first real good feeding. That got me worried. Didn't seem to affect the cat. Never noticed since then.

Almost like a short-term bloat or they may have a trick or two up their sleeve to aid digestion (might they be taking in water and then pushing it out?). Given their extreme ability to house large prey in their tummy, it may be not surprising.