live rock 4 120 gallon

[jerl77]

setting up 120 gallon with 55 gallon sump how live rock do i need ?

 

[emps]

I used the formula of 1.5 lbs per 1 gal for my reef.

 

[Aqua Pro Builder]

Depends on your aquascaping and types of inhabitants-from 1 to 1.5lb per gallon.

 

[jackson6745]

Your tank will function fine on 1/2lb per gal, or 1lb per gal, or even 1.5lb per gal. It really comes down to the look you want. I actually like less rock, which allows for more water flow, and more room for coral growth.

 

[LeslieS]

I have a 120 with a 25 gallon sump and I started with 75lbs of rock. Everyone said this was not enough, but no matter how much rock you have, you still have to stock slowly. Rock is just a place for the good bacteria to live. It does not create bacteria.

Also, a little bit of very porous rock is better than a lot of very solid rock.

Keep in mind that you will end up adding rock as pieces that you buy may be attached to rock when you buy them.