If everything is working for you, then nothing. Why spend more money if the plants are growing healthy...
Are you having issues that make you think you need to upgrade? The only things I can see you improving...not to say you need to...filter and pressurized CO2.
Are you dosing?
Again...if all is well...don't fix what aint broke.
Are you having issues that make you think you need to upgrade? The only things I can see you improving...not to say you need to...filter and pressurized CO2.
Are you dosing?
Again...if all is well...don't fix what aint broke.