Mike what do you mean saying "not reef safe"? Some reefers buying these to control pests in aquariums cause they are carnivorous but I have never heard that they gonna kill your coral or fish...
I have problem with little "snails" living in some kind of pipes sticking to the rocks (I forgot the name of these creatures) all I know they stilling food using them nets (it looks like a slime) and bother some of my corals, especially zoas and palys, bumble bees should take care of them that's why I got 50 pcs to my 140 gal tank... we will see.
Pellegrino I hope you don't mind about this question in your thread, if so please lmk ill remove it.
Thanks
mark