Need some help BI Color Bleeny

[Wingflier]

I wake up this morning to find my bleeny with white guill and fin on one side. I dont know if he is sick he eatting great. I added a new fish yesterday Pink Spot Shrimp Goby when I was flooting him the bleeny was attacting the bag and when I put the goby in the tank The bleeny went right after the goby.Then this morning I get up to find his guill and fin all white. if anyone could I'd help me Thanks Larry

 

[Wingflier]

here's a picture

here's a picture

here's a picture not good one not a camera person Hope someone could help
Its a 75 gl tank PH 8.0 Nitrate - Nitrogen 0.25 Phosphate .12 Calcium 420 Ammonia near 0 Nitrite near 0 Alkalinity 7 dkh Specific Gravity 1.25 Temperature 80