Hi, I hope someone can help me on some problems I'm encountering in my Cory tank.


1. Water parameters
a) 26c-28c
b) pH:7.4
c)Ammonia:0, Nitrate:10-20, Nitrite:0
d) Water change frequency:1x 40% a week


2. Tank set up
a) 20gallon
b) small round gravel
c) eheim 2213
d) Plants and mosses, some ...