1 lb of rock for ever 1 gallon?

[xxmindgamesxx]

So im sure many of you heard that 1 pound of rock for every gallon is the right thing to do, but is that actually true?

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[jayball]

It depends, that would probably be a good rule of thumb for dense rock but something like pukani you can use more like .5 - .6 LB/Gal. Adding media in the sump can offset how much you need in the display as well.

 

[mcgyvr]

In general yes its true. Its certainly a good starting point
To me thats a "minimum"...
I'd actually run more.. 1.5 of your typical Florida quarry rock and you can typically rely 100% on that being sufficient bacteria to easily handle a decent bioload with no additional equipment..

 

[hkgar]

It pretty much depends on the bio load. The less you use the smaller the bio load it will support.

 

[Valentini89]

I do have a high bioload plan for my new 150 tall. That being said, I purchased and had installed 90 lbs of live and dry pukani, Tonga, and other misc types of rock. I really like the aquascape. I certainly couldn't have done a better job. Nor would I have wanted to try in that 30" deep tank. Lol.

 

[xxmindgamesxx]

It pretty much depends on the bio load. The less you use the smaller the bio load it will support.

Yeah, 10 pounds are more than anough for 2 clown fish

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[thegrun]

It’s a good general guideline but certainly not a hard fast rule. In addition to providing a suficient surface area for the bacteria, you also need to provide sufficient caves and hiding places for your fish, particularly at night. Many fish will fight to the death defending or seeking a good night time hiding place.

 

[ReefkeeperZ]

as far as it goes it's a good rule of thumb for beginners. the reality is it all depends on bio-load, and other filtration nutrient export.

for example, a 60g system can be ran with about 10-15lbs of live rock and a moderate/heavy fish load (between 6-8 baby clown, hoevens wrasse, baby kole tang, soldier crabs, cleaner shrimp and tons of other inverts, and roughly 50-75 coral frags and colonies ). how do I know. there is such a system up and running. always minimally detectable nitrate phos, zero ammonia.

extremely oversized skimmer, filter sock about 10-15lbs LR in sump none in display only a rack system for corals. particle sponge in sump between baffles, and weekly water changes of 20-40% depending on whose performing them.