Hi there, I'm a beginner for RES and tropical fish. It's the first time I handle a 30 gallon tank. The first 1-2 days the water was crystal clear but then it got a little bit cloudy (obvious with background light). I guess this is normal, but how "cloudy" can be considered OK for water quality? Any other indication of water quality? For such a tank how often do you change the water? Right now I have a Proquatic filter and a heater, and I only feed the fish and RES some flakes and Reptomin. Thanks a lot!




