7/8in Flat Top Biological Coral Frag Plugs IceCap's 7/8" Coral Frag Plugs are made with a dense arrangement of small ceramic spheres that create the ideal mounting surface for small corals. The flat-top design provides maximum stability and contact area, making coral attachment quick and secure. These versatile plugs serve as the ideal mounting base for most coral species, making propagation effortless. Simply secure your coral frags using cyanoacrylate super glue gel (sold separately) for professional-quality mounting every time. Base Dimensions (WxH): 7/8in x .25inTapered Stem Dimensions(WxL): 11-9mm x 16mmQuantity Per Bag: 25pcs Features Ultra-High Surface AreaNatural Tan ColorTextured Mounting SurfaceNeutral pH(7-7.5)Great for Frag FarmingTapered Stem Fits Most Frag TraysWhy Biological Frag Plugs Are Superior to Traditional Plugs: Enhanced Coral Bonding - Porous ceramic sphere construction provides superior surface area that encrusting corals can naturally bond to, creating stronger, more stable attachmentsImproved Water Flow - Porous design allows water to flow freely through the plug, unlike solid traditional plugs that restrict circulationHealthy Bacterial Colonization - Increased surface area promotes beneficial bacteria growth without affecting pH levelsNatural Aesthetics - Natural coloration blends seamlessly into reef displays, eliminating the unsightly bright white contrast of traditional plugsReduced Algae Growth - Natural color reduces algae promotion compared to bright white traditional plugs that can become an eyesoreTrue Porosity - Unlike traditional plugs that may have surface texturing but remain solid and non-porous, biological plugs offer genuine porosity throughout