Types of rocks to max reef efforts

[ZoWhat]

Not seeing much discussion nor education on what types of rock can be used to maximize a reef.

What different types of rock-compositions are there?

What are good, better, best compositions for coral growth? Live bacteria? Copepods?

What compositions are to be avoided?

My knowledge of reef tanks and types of rocks seems limited. I want to learn more

.

 

[HB AL]

Imo old Fiji is great rock

 

[ZoWhat]

Imo old Fiji is great rock

So calcium carbonate composition....which is a no Brainer bc its old dead coral.

I want a further understanding of when rocks like limestone (Texas holey) are used. how a type of rock like that 'works' for corals

Meaning.... does a NON-calcium-carbonate rock HENDER corals slightly. Not maximizing their potential bc its not a natural part of a corals habitat (????)

There's gotta be dozens of different rock composition types

.

 

[HB AL]

Hopefully someone has the answers for ya, I just go with what works for me.

 

[NowGlazeIT]

So calcium carbonate composition....which is a no Brainer bc its old dead coral.

I want a further understanding of when rocks like limestone (Texas holey) are used. how a type of rock like that 'works' for corals

Meaning.... does a NON-calcium-carbonate rock HENDER corals slightly. Not maximizing their potential bc its not a natural part of a corals habitat (????)

There's gotta be dozens of different rock composition types

.

Well when a coral dies in my tank the skeleton is almost immediately filled with coraline, even when other algae is preset, coraline takes to it first. My speculation leads me to believe this is a big reason why the rock we use is old coral. The bio loads we tap into crave the elements from that substrate.

 

[HB AL]

So calcium carbonate composition....which is a no Brainer bc its old dead coral.

I want a further understanding of when rocks like limestone (Texas holey) are used. how a type of rock like that 'works' for corals

Meaning.... does a NON-calcium-carbonate rock HENDER corals slightly. Not maximizing their potential bc its not a natural part of a corals habitat (????)

There's gotta be dozens of different rock composition types

.

The more porous the rock is the better. That purple painted stuff that weighs a ton is solid as an example. Dry rock thats light relative to its size gives a good indication of porosity.