Pretty much can just put in sump but depending on your sump's layout, might need eggcrate partition or something so it doesn't get sucked into you pumps. Got a dedicate refugium now but when I first started was growing between my baffles after the skimmer.
The stuff grows in a mat and about every month, I split in half, shake out the pods and throw out.
For lighting would be needing a daylight spectrum bulb. If you can find them, the screw-in CF bulbs ~23W 6000K from HD/Cdn Tire seem to work.
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