Natural Reef Habitats Multi-Frag Cradle include free frag plugs and keeps your aquarium display neat, tidy, beautiful and keeps your corals in one place. No more falling coral or spending money on epoxy to jury rig some kind of mount that eventually keels over and destroys your prized specimens. Just one rock can pay for itself many times over. How much does ONE high end frag cost! Fish have great difficulty “nosing” the corals over like they do with frags on egg crates. Natural Reef Habitats products are ideal for for coral light acclimation or aesthetic frag display in a home aquarium. Simply have multiple Natual Reef Natural Reef Habitats products in your tank at different heights and move your frags as they acclimate without fear of them getting loose, falling out or “disappearing” – those who know, know what we are speaking about.