Don't take my word for it, but personally I can't really see anything wrong with its scales. Are you sure the gap is increasing? It might just be regular growth pattern but it would be good to get the opinion of someone like
From what I can see right now, it looks okay. If your fish is eating normally, I would not worry too much. Just maintain quality water and keep water on the warmer side. Keep an eye on it though, could possibly be early signs of dropsy.
Actually the scales overlap each other to cover the body ..I totally have 4 other arowanas with me. But now I'm bothered why this is happening?
But fish eats well and even I quarentined them for a week when I bought them a month before. Hao and
islandguy11 Thanks you for the reply!
This is my tank -