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  1. #1
    Did you hear that? luckydud13's Avatar
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    Aquarium safe rock

    What kind of rocks are safe for an aquarium?
    Success is going from failure to failure without a loss of enthusiam. - Winston Churchill

    I usually am a strict rock and metal guy, but IDK what it is but I am goo-goo for Ga ga.





  2. #2
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    This is from a sticky on guppies.com:

    Distilled white vinegar can be used to determine if a rock is safe. put a few drops on the rock, wait a couple of seconds and watch for bubbles. If bubbles are seen, this rock is NOT safe.

    One point to remember is some rocks are made up of a conglomerate of differing minerals and smaller rocks. It would be a good idea to test each rock in numerous places. This test can also be used to verify you choice of substrate for compatibility.

    Below is a list of rocks that are safe for aquarium use.

    Safe Rocks:

    * Crystalline Quartz
    (Rock Crystal, Amethyst, Citrine, Rose Quartz, Smokey Quartz)
    * Granite
    * Jade
    * Lava Rock
    * Microcrystalline Quartz
    (Jasper, Agate, Chalcedony, Sard, Carnelian)
    * Onyx
    * Petrified Wood
    * Quartz
    * Slate

    Unsafe Rocks:

    * Coal
    (Commercially harvested coal is treated with an oil by-product to reduce dust)
    * Coral
    * Dolomite
    * Fools Gold
    (or any other rock with metallic veins--Acid Producing)
    * Fossils
    * Marble
    * Limestone
    * Sandstone

    Keep in mind that some of these rocks can be used in some tanks. Crushed Coral makes an excellent substrate for maintaining water quality for African Cichlids. You can even use some rocks that come from limestone to do the same. Limestone will usually do nothing more than raise your water parameters. If you decide to use rocks that will contribute to the overall hardness, make sure you test the water parameters to get a handle on just how high your levels will increase over time.




  3. #3
    Just Noods...... noodles62's Avatar
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    Not Flagstone! As I have recently discovered - raised my ph way up!
    Quote Originally Posted by Lady G View Post
    I hear for a dollar he will let you ride on back and pull the lever to skid sideways!






  4. #4
    Senior Member Alan R's Avatar
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    Granite
    "There is no charge for awesomeness."

    Stephen Robert Irwin
    February 22, 1962 to September 04, 2006





  5. #5
    Did you hear that? luckydud13's Avatar
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    they have most of those at a material depot?? And would they let me dig through the little pile???
    Success is going from failure to failure without a loss of enthusiam. - Winston Churchill

    I usually am a strict rock and metal guy, but IDK what it is but I am goo-goo for Ga ga.



  6. #6
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    They should have at least the granite and slate, probably quartz and lava rock too. Hard to say about the others. As far as them letting you dig around, I have no idea. Wouldn't hurt to ask anyways.




  7. #7
    I put the 'snork' in 'snorkeling'! Notophthalmus's Avatar
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    What do you have in your tank, and what are your water parameters?



  8. #8
    Pterophyllum scalare jm1212's Avatar
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    dont forget shale. has a "less compact" look to it compated to slate





  9. #9
    Plants need meat too jpappy789's Avatar
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    Granite and slate are probably your best choices.
    20 gallon long planted
    My carnivorous plants

    Quote Originally Posted by Rbishop View Post
    I like the movie Goonies...pretty sure it was a historical documentary....



  10. #10
    Extinct? Since when? DAVIDFBT's Avatar
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    Basically all Igneous and most Metamorphic rock are safe to use. Very few types of Sedimentary rocks can be used.
    Join the dart side!

    My Tank



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