Aquarium Gravel: Fish Tank Sand & Rocks | PetSmart

Colorado Rock Large Ornament For Fish Tank Mountain Rocks Aquarium Decoration
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Next time you walk along the beach, look at howthe rocks are 'sorted', with the boulders near the cliff, thenlarge cobbles, then smaller pebbles, and finally gravel and sand. Thisimportant geological process can be observed on a small scale along theedges of rivers and lakes as well. So if you're creating a tankbased on a large lake, put all the boulders along one side of the tank,and then arrange the remaining rocks more or less in order of sizegoing towards the other side of the tank. This will suggest a much morenatural environment. You'll likely find that your fish will sortthemselves out as well, with certain species staying closer to thelarger rocks, others to small crevices, and yet others to the openwater.
Large Aquarium Rocks Fish Tank Ornament Rock With Tunnel Hole 32 x 18 x 17 cm
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A large surface area in the tank enables the construction of isolated rock clusters surrounded by sand, which allows you to create a much more convincing reef. The large open areas in such a construction will allow fish to swim freely and hover over the rocks, as they would on a natural reef. In addition to being more realistic, the isolated rocks and shallow depth all help make the tank more accessible, whether this be for simple chores, such as cleaning the glass, or more labour-intensive tasks, such as vacuming the sand, or changing water. In short, it simplifies every aspect of maintenance. Large Aquarium Rocks Fish Tank Ornament Rock With Tunnel Hole 32 x 18 x 17 cm
Photo provided by FlickrColorado Rock Large Ornament For Fish Tank Mountain Rocks Aquarium Decoration
Photo provided by FlickrAquarium Cave Decorations Rocks Stone Ornament Reef Large Hide Water Fish Tank #AquariumCaveDecorationsUSA
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If you're going to use rocks as the heart ofyour aquarium layout, then the best approach is to create at least onetall focal point where the rock formation rises at least halfway up thetank, and two-thirds of the way up. The contrast between the oppressiverockwork and the open water is very effective, and as well as lookinggood is popular with the fish, too. The classic way to do this is tosimply place three or four large, flat rocks on the bottom of the tankand then place one large slab on top of them like a table. Repeat thissort of structure across the tank to create as many caves as will berequired for the fish being kept. If you can't get rocks of theright size, terracotta pots and urns from a garden centre work just aswell, and the fish will happily use them. With a bit of algae thesepots look surprisingly good in fish tanks, and they are lightweight,relatively inexpensive, and very durable. Some aquarists like to jazzthem up a little by hiding airstones and submersible lights insidethem, creating startling visual effects.Dried reef rocks are essentially . Dried reef rocks are composed of dead coral from reefs. These rocks are usually white to tan in color; no colorful coralline algae like on live rocks. These rocks are great for making aquascape structues for your fish to live in, hide in, and enjoy.

Petrified coral is coral that is dried and no longer houses living organisms or bacteria. Usually this type is coral is seen as white to tan branches. Petrified coral is great for adding unique features to your aquarium aquascape.

Both dried reef rock and petrified coral with bacterias and organisms with time and a healthy, thriving aquarium. A newly established tank may take years to gain large quantities of coralline algae and bacteria blooms because the tank ecosystem is new and must mature and gain stability to maintain small, delicate organisms such as copepods and various bacteria. The process of turning dried rock and coral "live" by adding rocks, sand, and other objects to a newly established aquarium from an established, older aquarium. This way, the massive coralline algae and bacteria will spread onto your new rock and coral and house themselves there. Before adding dried rock and coral to your tank residing on them from store handling. Proper curing method can be found above; "Curing Live Rock Before Use", but for a shorter duration of time. Dried rock and coral can be obtained at local fish stores or online for decent pricing. Great dried reef rock is sold by trustworthy Carib Sea. These rocks are white and shaped gorgeously, as well as having a cheap price of less than two dollars per pound: