These are two fish I've had since April - the only disappointment was that the "Red and Blue" consisted 90% red, and you could barely see any blue as shown in the picture. I figured they just needed some time to mature. Well now they are both turning Black. One is completely black on both sides, the other one is primarily black on one side but has retained his red and blue markings to some extent on the other side. I started feeding all my fish color enhancing food - could this be the reason for the drastic color change? The first picture is that of the male with his normal colors on one side (he's black on the other) The second fish is also a "Red and Blue Gourami - one that is now all black on both sides. Is this too weird or what?