Ok i have 2 clarkii ,both have been in the tank for 2months.One has been pooping white stringy stuff .My question is it looks like a internal infection.Sits on the bottom more than latley.I need to find out what meds i need to get to treat .Water params amm 0,trate 5ppm,trite 0,calc 440,ph 8.2 sal 1.025,temp 80 . tia