I am starting a 55 gallon tank and want to know more about seeding some dead rock, I want about 70 pounds of live rock total, how long would it take to seed 50 pounds of dead rock with a 20 pounds live rock? I also am planning on sanding 40 pounds of live sand. I am in no rush for a reef tank...

I am not very sure on what to look for in live rock. I went to a LFS and they had a horrible looking selection of LR. Very huge and heavy pieces. So I am going to have to look toward the internet for my LR. Well i was browsing and came across this live rock. The pictures look really good. I...