i got my new goshiki 3 weeks ago. she is not big fun to feed whereas other kois eat like no tomorrow. i took her up yesterday. I did skin scrape, no parasites found and also no signs of bacteria infection on either body or gill. water parameters NH3/NH4 0 , NO2 0 , NO3 30PPM, PH 8.4 KH 160PPM. The water he was in has neutral PH of 7. could it be a new environment that makes her sort of depressed? she seems not getting along well with other koi. She always swims around the pond alone. is she homesick?????