Limestone use?

[silverado61]

I'd like to build up the bottom of my tank so I don't loose so much of my dry coral pieces in the sand. I'm planning at least a 3in substrate like I did before. Last time I made DIY rock to build up the bottom and it worked really good but it took fooreevvver to cure it. I read somewhere that you can use limestone as a base or as ornamental dry rock. Is this true? If so, I know of a landscaping supply company a few miles away that sells to the public and I know they have limestone slabs for retaining walls in small enough pieces to fit in my tank.

 

[2quills]

Limestone is calcium carbonate, i.e., dead coral, aragonite sand, etc., it's all the same thing. I would still cure it. May have some impurities in it.

 

[silverado61]

Limestone is calcium carbonate, i.e., dead coral, aragonite sand, etc., it's all the same thing. I would still cure it. May have some impurities in it.

Thanks 2quills. I think that's the way I'm going to go. Until I start the build I'm going to continue my research on this.

Anyone else?

 

[silverado61]

Thanks 2quills. I think that's the way I'm going to go. Until I start the build I'm going to continue my research on this.

Anyone else?

Limestone is calcium carbonate, i.e., dead coral, aragonite sand, etc., it's all the same thing. I would still cure it. May have some impurities in it.

In your opinion, Which would be better to use?
Calcite, Dolomite or Aragonite? I know each has a different density.

 

[lmforbis]

I’d go with less dense

 

[silverado61]

I’d go with less dense

Which one would that be?

 

[2quills]

I'd stick with aragonite since that's what will be in the tank anyway.

 

[silverado61]

I'd stick with aragonite since that's what will be in the tank anyway.

That's what I'm leaning towards.

 

[lmforbis]

Which one would that be?

That I don’t know

 

[silverado61]

Limestone is calcium carbonate, i.e., dead coral, aragonite sand, etc., it's all the same thing. I would still cure it. May have some impurities in it.

Would I just cure it for Alkalinity or is there something else I should test for?

 

[2quills]

PH, Alk, nitrate, phosphate and TDS.

I'd monitor all of those personally.

 

[silverado61]

Thx 2Quills. I'll make a note of it.