This is kind of a multi prong question. So I’m planning a frag tank so I want to be able to make my own little single frag holders and frag racks for acclimation and placement. For the most part they’re pretty dang expensive and I wouldn’t trust the cheap ones so I was thinking of just making my own with some magnets and acrylic or egg crate. Doing some research it looks like my main options are buying sealed magnets (expensive) or dipping in 2-part or plasti dip (seems like people have a high failure rate). Then I stumbled across ceramic magnets and that they’re supposedly reef safe. The frag tank is 1/2” glass so Im thinking 3/8” magnets should be enough? Here’s a couple ceramic magnets I found
Can anyone confirm if these are truly reef safe?
Can anyone confirm if these are truly reef safe?