well guys its really really really sucks to see the fish dying and dont know what to do..damnit just pray and hoping he get through it but....sigh..
what's with gill? how to check? maybe can show u a pix of the gill?FYI i keep him in a freezer right now really cant let him go. sounds crazy..hahaHe looks nice n fat, so probably not an gastrointestinal parasite. Check his gills.