Results 1 to 3 of 3

How can you tell if live rock is still "live"?

This is a discussion on How can you tell if live rock is still "live"? within the Saltwater General Discussion forums, part of the Saltwater category;
My LFS is selling live rock for $2 a lb, pretty cheap, but when I inspected the rocks, I didn't ...

  1. #1
    Teenie Weenie Fish
    Join Date
    Jul 2007
    Posts
    13

    Default How can you tell if live rock is still "live"?

    My LFS is selling live rock for $2 a lb, pretty cheap, but when I inspected the rocks, I didn't see any coralline algae, not even regular algae, or any organisms on the rocks. When I asked the owner about this, he said the live rock only had the beneficial bacteria on it because everything else had been scrubbed clean or died off during the curing process. I wanted to know how to tell whether a rock is dead or alive so I don't get ripped off. I'm also planning to purchase some live rock online and wonder how long the live rock can exist out of water during shipping.

  2. #2
    Super Fish Lorna's Avatar
    Join Date
    Mar 2005
    Location
    NE Indiana
    Posts
    3,082

    Default

    "LIVE" part of live rock refers to the beneficial bacteria that is coating the surfaces of the rock. The curing process is when any dead/dying or decaying matter is removed from the rock and is usually done over a period of a couple of weeks scrubbing to remove decaying matter. Depending on the rock and where it came from will determine how much visible life remains after the curing process. Rock that comes from the south pacific probably has the most amount of die off as it has been in shipping the longest. All rock that you buy will experience some die off between the time of purchase and the time you place it in your tank and may create a cycle in your tank as dead matter converts to ammonia/nitrite and out......unless you are shipping immersed in water there will be some. I have bought Marshall Island rock that looked virtually dead only to have it come alive with pods and stuff once placed in my tank.......you would be amazed. If you are truly buying live rock for $2 a pound you are getting a bargin. Though I would question whether it is fully cured, and where it came from......
    75g reef

    29g reef

    Living the salty side of life

  3. #3
    TRe
    TRe is offline
    Super Fish TRe's Avatar
    Join Date
    Feb 2005
    Location
    ft. lauderdale
    Posts
    3,645

    Default

    Quote Originally Posted by arlong1 View Post
    I wanted to know how to tell whether a rock is dead or alive so I don't get ripped off.
    at $2 your not getting ripped off
    Rimless 82g SPS/Reef 48x22x18 - MH/T5, SWC 160 (skimmer), Aqua Controller Jr, Natureef dosing pump/2part, Po4 reactor, Kalk reactor, Bio Pellets/Reactor, Tunze 6045 X 2, ATO, Automatic Water Change setup, 60g sump/frag tank
    (4 bulb 24" T5's over frag tank)
    125g SOLD!
    300g SOLD!

Posting Permissions


About | Contact | Privacy | Staff | MFT Gear | Chat | Sponsors | Forum | eBay | SiteMap
Copyright 2010 MyFishTank.Net All rights reserved.

MyFishTank.Net and the blogs, articles, comments and other features therein are for informational purposes only and provided "as is" without warranties, representations, or guarantees of any kind. Content on MyFishTank.Net should never be used as a substitute for advice from a qualified professional. MyFishTank.Net shall not be liable for the accuracy, usefulness or availability of any content, and you agree to hold MyFishTank.Net harmless from any loss, harm, injury or damage resulting from or arising out of your use of or reliance on any content. The views and opinions expressed in an article or column are the author's own and not necessarily those of MyFishTank.Net.