Got the coraline encrusted rock from my son's science teacher. He said take whatever you want and left to go to a meeting. He really likes the freshwater fish I gave him. I only took a smaller piece and when I got home I put it in a paper grocery bag and hit it about ten times with a hammer so that I would be able to spread it across the tank better. Some of the bigger pieces I scraped along my sterile white DIY live rock to help seed new growth.
Did a 10% water change today.
55 Gallon, DIY Live Rock, 2 Taotronics 130w LEDs, CPR HOB skimmer and refugium, 525 GPH SunSun 5-stage Canister with UV Sterilizer using Chemi-pure Elite, and Two Fishes GFO reactor and 3 800 GPH powerheads. <><