Aquarium rocks are one of the most important things that you have to consider if you are going to design the aquarium that you have. If you want to make sure that the somewhat clinical setup environment of your aquarium will look like an attractive replica of actual natural habitat for fish and plant, you have to see to it that all the aquarium rocks you will use are property chosen, properly prepared and properly positioned as well.
One very important thing that we want you to know regarding aquarium rocks is the fact that not all of them are identical in terms of composition and not all of them are suitable for all kinds of aquarium since there are those that will only work best for certain types of aquarium. There are rocks that are not good for aquariums while there are also those that will work best on it thus, we suggest that you first do some tests on it prior to you dumping them in your fish tank. In other words, the type of aquarium rocks that you will place in your aquarium is dependent on the kind of fish and plant species that you will place there as well.
If you are going to ask us what type of aquarium rocks best fit for a freshwater aquarium, we highly recommend inert rocks. Speaking of inert rocks, this is a term that is commonly used in reference to a group of rock that has something to do with the following types of rocks: quartz, basalt, shale, obsidian, sandstone and coal as well. As what its name implies, these are the types of rocks that do not affect the chemistry of the water. It is safe to assume that that is the primary reason why it is the best choice when it comes to freshwater aquarium.
Meanwhile, if you want to have a brackish aquarium or a hard water aquarium with the intention of raising the pH level or hardness of the water without the use of any chemical treatment, Calcerous rocks are your best choice. If you are wondering why Calcerous rocks are the best option for this, well, that is due to the fact that these types of rocks can not only change the pH level of the water, it can also raise its hardness. Calcerous rocks are the direct opposite of inert rocks which are commonly used for freshwater aquariums. Several varieties of Calcerous rocks come in the form of limestone, marble as well as chalk.
This is the very reason why you have to be clear on the type of aquarium you want to have and the type of marine life you will be placing there since this will determine the kind of aquarium rock you should choose.