28 watts is a little high unless you're dosing CO2. You could just get some floating plants to block some of the light if your not ready for CO2.
Substrate goes by thickness, not weight. You want to stay between 2" and 3". Less than 2" and you're plants might not root properly, more than 3" and you could run into some anaerobic issues.
Substrate goes by thickness, not weight. You want to stay between 2" and 3". Less than 2" and you're plants might not root properly, more than 3" and you could run into some anaerobic issues.
