Is 90lbs of Live Rock enough for my 72 gallon tank

[treminga]

I can add more, but I was wondering if I needed it right away, or should I wait. I wanted to get some GARF Grunge (Live Sand Activator) and a decent sized clean up crew soon, and figured that would cost about around $150 or so, but if I don't have enough live rock yet I want to know before I add anything to the tank.

I know there is a formula for live rock to gallon ratios, I guess I just didn't want a WALL of rock this time, like I had last time.

I was thinking about going with either Buna or Tonga Branch instead of just Fiji premium live rock, any advantaged or disadvantages?

[Shiandy]

90lbs is a good starting point, around 1.5lb per gallon would be a good number, also when u start to add corals most come attached to some rock, and this will add to it. I'd stay at 90lb's and leave room for when the corals start going in.

[sjm817]

It depends on the rock. 90 lbs of Fla aquacultured stuff is not a lot of rock since it is very dense. 90 lbs of light porous rock like Marshall Island is a lot of rock.

[treminga]

It is 50 lbs of Hawaiian waterfall rock- very light and porous, 30 lbs of Fiji live rock, 10 lbs of Buna Branch, and 10 lbs of Tonga Branch.

[meco65]

Wow I would like to see some pics of s the tank sounds great. And should be enough to start.

[seattlerob]

<a href=showthread.php?s=&postid=8306143#post8306143 target=_blank>Originally posted</a> by treminga
It is 50 lbs of Hawaiian waterfall rock- very light and porous, 30 lbs of Fiji live rock, 10 lbs of Buna Branch, and 10 lbs of Tonga Branch.

That sounds like 100lbs of LR to me ;)

[treminga]

I was estimating the Tonga Branch and Buna Branch, I gave them how much money I wanted to spend each and they weighed accordingly, it would be between 5-10lbs ;-) ( I KNEW someone was going to make a comment ;-))

[seattlerob]

<a href=showthread.php?s=&postid=8306504#post8306504 target=_blank>Originally posted</a> by treminga
( I KNEW someone was going to make a comment ;-))

Sorry, I couldn't resist...

[jeffltodd]

I have a 72 gal tank. I had #120 in my first set up - this time around I'm going with 80#.

I have heard as long as it is 1-1.5x your tank, you will be ok.

90# is fine. You will probably naturally be adding a little bit by bit as you add corals.

[MJAnderson]

I swapped out some fiji for some marshall island. I think 100lbs of fiji took up as much space as 55lbs of the marshall island.