They can be used right out of the bag. They are ceramic and reef safe. We have been using the same material since 2006 and many of our original pieces are still in aquariums today. Our disks and plugs work great for lps, sps, soft corals and polyps. The surface is rough to the touch and extremely porous. They will not crumble like concrete/aragonite plugs and do not require an additional six weeks of curing before you can use them.
- Product Specs
Manufacturer Alternative Reef