Hinging on the biotype take note that all of these rocks must be appropriate for aquariums.
Marble aquarium rocks.
If it fizzes its unsafe and shouldn t be used.
Gravel and marble are two popular choices.
Calcareous rocks limestone marble and dolomite have a high calcium content and are usually not safe for use in a freshwater aquarium.
Limestone is probably the most frequently encountered calcareous rock followed closely by marble.
Gravel has been a staple aquarium substrate for years but many hobbyist are starting to use glass marbles.
Stay away from calcareous rocks because these contain calcium that might boost the hardness level and ph level in the water.
The ideal aquarium to have for using large rocks is a flat bottom acrylic tank but glass aquariums can also be used.
Avoid geodes shells marble limestone dolomite and crushed coral in tanks.
Meanwhile metamorphic rocks include dolomite schist marble quartzite gneiss phyllite slate and hornfels.
Inert rocks are the best types of freshwater aquarium rocks.
What are the most trusted aquarium rock brands.
Depending on how you plan on setting up your aquarium which substrate you choose may determine how you maintain your aquarium.
A good way to test for safe rocks it to drop a couple of drops of ph down on the rock in question.
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Both substrates have pros and cons.
Sedimentary rocks consist of limestone breccia marl conglomerate sandstone and shale.
Use lava rocks to give small fish places to hide or just to give yur aquarium some atmoshpere.
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For local water that is low in hardness and alkalinity using some calcareous rocks in the aquarium will raise the hardness and alkalinity and stabilize the ph.
If you are loking for a rock with holes in it lava rocks for the bottom of the tank or white sand firerocks biz has your rock.