BGrand
Only dead fish swim with the stream.
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INDMAS Member
Midwest Reefer
Could someone please let me know what size bit to use to drill plug holes in my Marco Rock. I am setting up an IM20 and putting the Marco Rock together for my scape. Once done I want to drill several shallow holes for adding coral later. What size bit should I use to drill the holes and about how deep? Or does everyone cut the plug off?