When to add a Clam

[Marcus K]

Thanks, my plans were to start with a Dersa. I did purchase a 250watt M/H but could not get it setup properly in my hood so I have sold it and ordered a 4x96watt PC fixture. I will be able to run a 2x55 watt PC fixture also if needed. My tank is a standard 90 so I was hoping this would be enough lighting. So far my params are good other than a slight raise in Amonia with the addition of some LR.