flowerhorn color blotchy and fading

  • We are currently upgrading MFK. thanks! -neo
This is my bigger one in the 20 gallon, and the third picture is the smaller of the four that is in my octagon with my one that has changed colors, and I got all four of the at the same time from the same person.

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I'm new to this forum. How do I know if I have a fader or my dude is just sick ?
 
Can someone please tell me if my FH is fading or sick. Seems to eat and swim fine but color looks stressed. 20180727_065120.jpg 20180727_065054.jpg
 
What’s happening to my 3” Flowerhorn? .... Fading? The pic on the left is one month ago... the pic on the right is of the same fish taken today.

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