Just set up 65g DSA. My friend said there is a "happy line" that I can mark with a sharpie on my sump to indicate optimum water levels.
My question: I presume this is to be done after the return is shut off, so that I can mark the max water amount that the sump can handle??
Regards,
CP
My question: I presume this is to be done after the return is shut off, so that I can mark the max water amount that the sump can handle??
Regards,
CP