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Yes. You can layer substrate in any tank. However, if your plants can grow fine in gravel, they can grow fine in colored gravel, just make sure the colored gravel is safe for aquariums.
I would say yes it would be ok not to put anything at the bottom of the aquarium. Gravel, stone and plastics are usually used for appearance. If it is a freshwater aquarium and if you plan on using live plants then gravel is necessary.If it is a salt water aquarium then it is necessary to use live rock and live stone.
Have a freshwater aquarium or some sort of freshwater aquarium and feed it plants, like lettuce or kale. Make sure to occasionally clean out it's home!
Most definitely! Plants are what really make a freshwater aquarium come alive. Take a look at the below referenced links to see some amazing examples from masters.
An aquarium, if you want plants, depending on the type you may need substrate, a filter, sand or gravel about 1 pound per gallon, a light between 5000K and 6500K (it does not have to say aquarium), water purifier, water, fish food, a power strip that has at least 4 outlets, an aquarium heater if you are going to have tropical fish. and about 30 minutes to put everything together and add water
Put them in a decorative aquarium and add colorful gravel to the bottom and live plants that they will like to eat and hide among.
You obviously put fish in it. You can also buy gravel, plants, and other decorations to go in your fish tank.
To build a balanced aquarium in a jar, start with a clean jar that is clear in coloring. Choose aquatic gravel and plants and make sure to root the plants in the gravel. Then, add shrimp or snails and close the lid. Make sure the jar is kept in an area that receives filtered sunlight.
The list would run a mile long. Almost all aquatic plants in the wild can inhabit a planted freshwater aquarium. If you are starting out you may want to try an easy growing plant that requires low light. Anubias or Crypts. Plants in an aquarium are not difficult to grow if you know what they like.
Rocks are not needed for a planted freshwater aquarium. You need good substrate for the plants though. Gravel might do just fine if they are not too big. Many pet stores sell special substrate for planted aquariums. Eco-complete is one of the better plant substrate with rich in iron and other minerals.
Fish tank Plants Heater Tropical fish Gravel There might be other things depending on if you are keeping tropical plants or cold water plants.
Anything labeled safe for aquarium use. Beyond that, it depends on what type of fish you are keeping, and whether or not you have plants, for which type of aquarium substrate (gravel or other lining for the bottom) should be used.