I have a 5 gallon tank with an in tank Tetra filter which seems to stinks cause the filter cartridge clogs fast. Also I have a 10W cfl bulb. I have a large amount of Java Moss and 2 Moss Balls. They are not affected. My Crypt and Amazon Sword have algae on them. I do not have a substrate or test kit. I have other issues which I will post in other areas.