I've had my green clown goby for about four months, when I first bought him he was malnourished and blue in color. Over the past few months I've fattened him up, and he's turned green like he should, but recently he's turned pink and he's got spots on him that look like ich,but I'm hoping it's lympho, and fearing it's flukes or velvet. He's still eating like a piggy, what does this look like to you?