Go Back   Aquarium Advice - Aquarium Forum Community > Saltwater and Reef > Saltwater Reef Aquaria
Click Here to Login

Join Aquarium Advice Today
Reply
 
Thread Tools Search this Thread Display Modes
Please support our sponsors and let them know you heard about them on AquariumAdvice.com
 
Old 03-05-2016, 02:41 PM   #1
Aquarium Advice Addict
 
cgthebeast's Avatar
 
Join Date: May 2013
Location: In a house
Posts: 3,085
Lava rock for grill as filter material

Wanting to add some rubble rock to my sump and I'm big fan of lava rock for its porous quality. Can the grill version safe for reef tanks?
__________________

__________________
36 gallon fresh water

10g saltwater
cgthebeast is offline   Reply With Quote
Old 03-05-2016, 04:17 PM   #2
SW REEF 18+ YEARS
Community Admin
 
melosu58's Avatar



Tank of the Month Award
 
Join Date: Oct 2004
Location: Virginia
Posts: 38,249
I have heard that it leeches heavy metals into your water. I`ve seen a few post over the years about it here on the site.
__________________

__________________

SITE ADMINISTRATOR

You can view many of my fish and corals in my photo albums in my profile.

View my tank


AA Community Rules|AA TOS

Forums 101 - posting, accounts, basics
melosu58 is offline   Reply With Quote
Old 03-05-2016, 04:33 PM   #3
Aquarium Advice FINatic
 
Beej1254's Avatar

POTM Champion
Tank of the Month Award
 
Join Date: Apr 2015
Location: Ohio
Posts: 613
I've heard mixed reviews. Although I'll be the first to say that I currently have a whole bag from the hardware store in my sump. It's been in there for over a year now and my tank is doing very well.

When I was researching I found both good and bad reviews but no real evidence. I don't know much about the grilling lava rock but I have landscaping lava rock if that's any different.

The only thing I did was rinse and removed the darker blackish pieces. I feel like it's kind of a gamble still even though I use it just because it's one of those things where no one has solid evidence. Even though I have it in my sump and have for just over a year that's not to say something won't leech out eventually.


Sent from my iPhone using Aquarium Advice
__________________
Beej1254 is offline   Reply With Quote
Old 03-05-2016, 05:10 PM   #4
Aquarium Advice Addict
 
cgthebeast's Avatar
 
Join Date: May 2013
Location: In a house
Posts: 3,085
I can understand that, does the vinagear treatment help with these though, like does it foam or anything?
__________________
36 gallon fresh water

10g saltwater
cgthebeast is offline   Reply With Quote
Old 03-05-2016, 06:16 PM   #5
AA Member
Community Moderator
 
Delapool's Avatar



POTM Champion
Tank of the Month Award
 
Join Date: Feb 2013
Location: Perth, Australia
Posts: 13,574
Quote:
Originally Posted by Beej1254 View Post
I've heard mixed reviews. Although I'll be the first to say that I currently have a whole bag from the hardware store in my sump. It's been in there for over a year now and my tank is doing very well.

When I was researching I found both good and bad reviews but no real evidence. I don't know much about the grilling lava rock but I have landscaping lava rock if that's any different.

The only thing I did was rinse and removed the darker blackish pieces. I feel like it's kind of a gamble still even though I use it just because it's one of those things where no one has solid evidence. Even though I have it in my sump and have for just over a year that's not to say something won't leech out eventually.


Sent from my iPhone using Aquarium Advice

I'd be interested in any links you came across to see what work has been done.

I'm guessing by lava rock this is volcanic rock with the holes in it?

On a quick look it looked to me that this should contain more lighter elements in the holes (silica, calcite, etc). However I do have vague recollections of pyrite (iron sulphides) being seen on field trips.

One thought would be is that if there is any secondary mobilisation of arsenic, copper or sulphur then these porous rocks (assuming I have the right ones ) could easily end up with mineral deposits not in the original rock formation.

So one quarry might be fine, another quarry might show this. Some guesses pre-coffee
__________________
Delapool is offline   Reply With Quote
Old 03-05-2016, 07:25 PM   #6
Aquarium Advice FINatic
 
Beej1254's Avatar

POTM Champion
Tank of the Month Award
 
Join Date: Apr 2015
Location: Ohio
Posts: 613
Lava rock for grill as filter material

Quote:
Originally Posted by Delapool View Post
I'd be interested in any links you came across to see what work has been done.

That was my problem when looking for information..I couldn't find any legit testing or information for lava rock usage in our tanks.

It was all speculation from people who haven't tried it because of what they heard. Or from people like me who have tried it and say it's ok. I remember one of the main points was something you mentioned that it may come from places where it could have been exposed to various other things which may or may not effect our tanks.


Sent from my iPhone using Aquarium Advice
__________________
Beej1254 is offline   Reply With Quote
Old 03-06-2016, 12:33 AM   #7
AA Member
Community Moderator
 
Delapool's Avatar



POTM Champion
Tank of the Month Award
 
Join Date: Feb 2013
Location: Perth, Australia
Posts: 13,574
No worries, was just curious as I saw this in passing.

I'm not even sure vinegar treatment would help. The theory makes sense but not sure practically as it is such a weak acid.
__________________
Delapool is offline   Reply With Quote
Old 03-06-2016, 11:59 AM   #8
Aquarium Advice Addict

POTM Champion
 
Join Date: Apr 2014
Location: Southern Cali
Posts: 1,734
I have used the decorative lava rock for ages. I have it in my sump mixed with Matrix and have used it for 2 years now. The only thing I have ever heard is some types may leach phosphate. I haven't noticed anything, but I did cur/cycle it for about 2 months before using it.


NOW, I did have some large decorative lava rock pieces in my tank which I removed when battling my algae war, and I do suspect they were possibly leaching phosphate in the tank because the levels have dropped since then, but I did multiple things so it is far from conclusive scientific evidence...LOL


So in my experience the ~2" decorative lava rock has been ok
the big decorative pieces sold for tanks may have been a problem.
make of it what you will.


In freshwater they are great.


and isn't the vinegar test to detect for limestone or other calcareous rock?
__________________
PB_Smith is offline   Reply With Quote
Old 03-06-2016, 06:37 PM   #9
AA Member
Community Moderator
 
Delapool's Avatar



POTM Champion
Tank of the Month Award
 
Join Date: Feb 2013
Location: Perth, Australia
Posts: 13,574
Lava rock for grill as filter material

Good question. Curious myself.

I guess the theory may be if there is no reaction from using vinegar then in a stable SW tank there should be no issues with heavy metal leaching?

Other minerals non-reactive to vinegar would be assumed to be stable.

If this is wrong just let us know. I don't have a SW tank so this is just a geology interest.

Phosphate can be mobile. I'm not sure how much. For the work I do phosphate has been remobilised through the rocks, possibly just with a bit of rainwater.
__________________

__________________
Delapool is offline   Reply With Quote
Reply

Tags
ate, filter, mate, rock

Please support our sponsors and let them know you heard about them on AquariumAdvice.com

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Lava Rock as Filter Media mfdrookie516 Freshwater & Brackish - General Discussion 7 07-14-2011 04:55 PM
Lava rock in wet dry filter? ThrowedToad DIY Projects 5 12-30-2008 02:38 PM
DIY lava rock caves and rock formation. cbk.o4 DIY Projects 3 03-29-2006 07:18 PM
Corn on the grill? (Update) Fishyfanatic Aquaria Off-Topic 27 05-09-2005 11:00 AM
Lava Rock for Base Rock MountainHigh Saltwater Reef Aquaria 3 01-27-2005 11:36 PM







» Photo Contest Winners








Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -4. The time now is 06:59 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.