The IceCap 4in Biological Coral Frag Tile (10pcs) is the largest format in IceCap's biological mounting line, built for sizable colonies, multi-head frags, or grow-out projects that need real surface area to spread across. The porous ceramic sphere construction lets water flow through the tile instead of pooling on top of a solid surface. Dimensions: 4in x 4in x 0.25in Quantity: 10 pieces per box Best for: larger Montipora, Zoanthid, and Chalice colonies, SPS colony grow-out, and multi-head Euphyllia frags Color: natural tan — blends into reef displays instead of standing out like bright white plugs pH: neutral (7-7.5), safe for reef and mixed systems At this size, tiles work well as a permanent display base rather than a temporary frag stage — large enough that a colony can encrust the whole surface and become a display-ready piece in place.Use with: cyanoacrylate super glue gel (sold separately) for mounting.