Is it OK to have no gravel in a fish tank?

Biological Filtration
The bacteria can live without a comfy gravel bed, but they might not grow in sufficient quantities to keep the aquarium safe for your fish. If the tank is left with a bare bottom, it will be necessary to change the water more often to keep harmful waste from building up.
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Can I keep aquarium without gravel?

You don't necessary need gravel or other substrates in the aquarium to keep fish. Substrates are more for aquatic plants. It is often done and is a standard practice among many fish breeders, as these tanks are easier to clean. Yes it's called bare bottom and it works if you have it filtered well.
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Can you have a fish tank without substrate?

Species of Fish That Do Well Without Substrate

Goldfish, Bettas, and Minnows will do just fine in a bare-bottom tank, but some species of fish need substrate to live a healthy life in the aquarium.
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Will aquarium plants grow in sand?

Sand is usually so compact that plant roots have difficulty growing and spreading out. Like gravel, sand also does not provide nutrients for the plants. Even with the addition of root tabs, it is not the best option for a planted aquarium.
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Is a bare bottom tank better?

Allows Increased Water Flow

By not having any sand, bare bottom fish tanks allow you to have significantly more flow. You can have powerheads at or near the bottom of the aquarium. You can also keep a higher flow without stirring up sand. This increase in water flow can help the health and growth of your SPS corals.
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No Gravel Aquarium Fish Tanks? (It Does Work)



Can goldfish have no substrate?

And the answer is that goldfish don't need substrate. There's nothing essential about having a substrate and goldfish can survive quite healthily and happily without one. So, as goldfish don't require a substrate, you could choose to simply leave the bottom of your goldfish tank bare.
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Do goldfish need rocks?

A goldfish aquarium doesn't need a gravel substrate but the goldfish in that goldfish aquarium surely would appreciate it. Not only is a gravel substrate aesthetically pleasing, it creates a place for beneficial nitrifying bacteria to grow.
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Which is better sand or gravel for a fish tank?

Gravel is the better choice for most freshwater aquariums. One of the major benefits of gravel is that it allows water to flow through it, preventing the buildup of amoebas and bacteria in the substrate. If allowed to build up for too long, these can sicken your fish and lead to an accumulation of aquarium mold.
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Can I use normal soil in aquarium?

So can you use regular soil for aquariums? It's not preferable to use the normal soil for your tank unless you know what is in there. The soil for the aqueous environment needs to be organic with no chemicals, pesticides, or critters in it and have the right amount of nutrients content.
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Do I need soil for aquarium plants?

Aquarium plants also need soil to grow well. They need nutrients from the soil and the right kinds of fertilizers to stay happy and healthy. However, you cannot use the same soil you use for land plants in your aquarium and must use aquarium soil instead.
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How often should I change the sand in my aquarium?

Only in the case of a tank move/change with a major disturbance of the sandbed. In my case that would be 3 years, 4 years, never, never. Less technology , more biology .
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Can I put gravel on top of sand in my fish tank?

Sand and gravel can be used together in aquariums, but if the gravel is put down first it will end up on top as the sand gradually settles to the bottom. Sand can't be used with gravel when using under-gravel filters as the motor won't be able to suck the water through both the gravel and the hard-packed sand.
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Can you put gravel in fish tank after water?

Ready to get setup? Thoroughly wash aquarium gravel, rocks and ornaments with warm water, then add them to your tank. Do not use soap or detergents—they are highly toxic to fish.
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How deep should Aqua soil be?

General guidelines for soil thickness: - For aquasoil, 3 to 4 inches if you have deep rooting plants and want to grow them quickly or to maximum size. Smaller carpeting plants can grow well with just an inch of soil.
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Do I need Aquasoil?

Ammonium binds to soil, and so you need aquasoil/soil to have it available to plants. This is why Aquasoil substrates always grow plants better than just inert substrates spiked with root tabs.
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How much gravel should be in a fish tank?

Generally speaking, you should add about 1 pound of substrate per gallon of water. This means that for a 5-gallon fish tank, a safe bet would be 5 pounds of gravel. Similarly, for a 20-gallon fish tank, roughly 20 pounds of gravel would suffice.
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How often should I clean the gravel in my fish tank?

If you have a healthy and well-balanced fish tank, you may be able to go for several months without cleaning the gravel. However, even with a highly efficient tank, it is a good idea to clean gravel at least once every two to three months.
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Can you put rocks from outside in a fish tank?

The principal danger of using your own outdoor gravel and stones in an aquarium is the possibility that they contain calcium, which can alter the pH of aquarium water. But before testing, make sure to also wash the stones thoroughly to remove all loose grit and contaminants.
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Can goldfish live in sand?

Sand is a great substrate for goldfish because they're unlikely to accidentally ingest enough of it to harm them and it won't get stuck in their mouths. Many plants grow well in sand, although you may need root tabs to help them along.
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Should you use gravel in goldfish tank?

Goldfish should never have gravel in their tank. Goldfish try to eat everything in sight and that includes their tank substrate. Gravel pieces can easily become stuck in their throats and this will cause them a lot of stress and even death if it is not removed in time.
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