Live rock or ocean rock

Kishan313 · 09/08/2018, 08:27 AM

Could someone please ID this for me, not sure if it is dead LR or Ocean rock? Any suggestions?

Feels quite heavy, but not 100% sure

Sent from my iPhone using Tapatalk

mcgyvr · 09/08/2018, 09:16 AM

It does not look like the typical porous/lightweight Florida quarry rock,etc...commonly used in this hobby..

Mike Ordner · 09/08/2018, 10:35 PM

Looks like what I call Texas holey rock which is a land based limestone and very dense.

Wandering · 09/09/2018, 07:29 AM

What do you mean by "dead LR or Ocean rock"?

Is "dead" live rock not just "rock"?

I agree with above posters that it looks dense and atypical than the porous rock reefers usually use.

Kishan313 · 09/09/2018, 08:43 AM

Thanks guys,

I think it could have been ‘ocean rock’ used in cichlids set ups here in the UK.

Not the ‘porous LR’ we use in reef specific set ups

Sent from my iPhone using Tapatalk

billdogg · 09/09/2018, 12:02 PM

I would call it "Texas Holey Rock" as well. Although it is denser than typical reef rock, I like to use some in my DT because of all the little tunnels/swim-throughs it has. I would guess that my DT is about 30% THR. It is calcium based so is perfectly ok to use, it just won't support as much denitrifying bacteria as a similarly sized piece of more porous rock can.

Lancerman · 09/11/2018, 12:12 PM

If you are new to the hobby I suggest getting cured live rock from a LFS to make your cycle a lot faster. If not you can buy more porous dry dead rock from amazon and cycle with it. Looking at that rock, I would only use for freshwater for a planted tank and not in my reef tank. It is heavy since its more dense, and therefore would not be suitable for hosting beneficial nitrifying bacteria. I can't tell its composition by looking at it, but I'd be cautious about using it. Good luck.

09/08/2018, 08:27 AM	#1
Kishan313 Registered Member Join Date: Sep 2018 Posts: 7	Live rock or ocean rock Could someone please ID this for me, not sure if it is dead LR or Ocean rock? Any suggestions? Feels quite heavy, but not 100% sure Sent from my iPhone using Tapatalk

09/08/2018, 09:16 AM	#2
mcgyvr Registered Member Join Date: Sep 2003 Location: North Carolina Posts: 20,050	It does not look like the typical porous/lightweight Florida quarry rock,etc...commonly used in this hobby.. __________________ Who me?

09/09/2018, 12:02 PM	#6
billdogg Registered Member Join Date: Apr 2008 Location: Grove City, Ohio Posts: 10,806	I would call it "Texas Holey Rock" as well. Although it is denser than typical reef rock, I like to use some in my DT because of all the little tunnels/swim-throughs it has. I would guess that my DT is about 30% THR. It is calcium based so is perfectly ok to use, it just won't support as much denitrifying bacteria as a similarly sized piece of more porous rock can. __________________ I'll try to be nice if you try to be smarter! I can't help that I grow older, but you can't make me grow up! Current Tank Info: 120 mixed reef with 40b sump, RO 150 skimmer, AI Sol Blue x 2, and a 60g Frag Tank with 100g rubbermaid sump. 2 x Kessil A360w lights, BM curve 5 skimmer

09/08/2018, 10:35 PM	#3
Mike Ordner Registered Member Join Date: Sep 2009 Location: Corpus Christi, Texas Posts: 415	Looks like what I call Texas holey rock which is a land based limestone and very dense.

09/09/2018, 07:29 AM	#4
Wandering Registered Member Join Date: Sep 2017 Posts: 54	What do you mean by "dead LR or Ocean rock"? Is "dead" live rock not just "rock"? I agree with above posters that it looks dense and atypical than the porous rock reefers usually use.

09/09/2018, 08:43 AM	#5
Kishan313 Registered Member Join Date: Sep 2018 Posts: 7	Thanks guys, I think it could have been ‘ocean rock’ used in cichlids set ups here in the UK. Not the ‘porous LR’ we use in reef specific set ups Sent from my iPhone using Tapatalk

09/11/2018, 12:12 PM	#7
Lancerman Registered Member Join Date: Aug 2018 Location: Arcadia Posts: 35	If you are new to the hobby I suggest getting cured live rock from a LFS to make your cycle a lot faster. If not you can buy more porous dry dead rock from amazon and cycle with it. Looking at that rock, I would only use for freshwater for a planted tank and not in my reef tank. It is heavy since its more dense, and therefore would not be suitable for hosting beneficial nitrifying bacteria. I can't tell its composition by looking at it, but I'd be cautious about using it. Good luck.