So I lucked up on some nice looking old dead live rock. Now I have done the simple bleach soak but the larger piece that I really liked was really dirty. Moss growing on it! So I decided to try a muratic acid bath along with the bleach soak to eat away at it a really clean it up. Ive never used muratic acid before on reef rock but its really simple, just know that it is a very dangerous chemical. Here is what I did.
1. Soak rock in 25:75 bleach and water solution for 3 days.
2. Rinse rock well with water.
3. Let dry overnight.
4. Soak rock in 10/90 muriatic acid and water overnight
5. Rinse rock well.
6. Let dry at least 2 weeks.
It worked great and I just wanted to share my exp. with this. I dont need the rock but may add the large piece in my DT and use the other for frags or coral mounting. I forgot to take before and after pics, but heres after. Only the large piece recieved the acid soak. The small ones just got bleached.