:/ my fishs' gills all look so red, not pus, just reallyred in my 5 gal that i've had running for 5 mos now i have 1 mickey mouse, 1 drawf frog, 1 cory cat , and about 10 week and a half old babies :D the ammonia is 0, nitrate 175, nitrite 0, hardness 300 (very hard),alkalinity 140...