Among the marine fish, some beautiful fish can be raised in the aquarium for people to watch, we call it seawater ornamental fish.

The usual way to add oxygen to the seawater in the aquarium is to use a special oxygen pump.

Marine salt, also known as sea salt, is a crucial element in creating a balanced ecosystem in your aquarium. It contains a mix of essential minerals, such as calcium, magnesium, and potassium, that are necessary for the growth and development of reef and tropical fish.

Iron is not only a nutrient for the single-cell zooxanthellae produced by corals, but also a nutrient for the brightly colored bodies of sea fish and invertebrates.

In the vast South China Sea, there are thousands of islands of different sizes dotted.

The so-called salinity is the weight percentage of all inorganic salts present in 1 kg of water.

If you're setting up an aquarium tank for your tropical fish, you may be wondering which substrate to use - calcium sand or coral sand. Both types of sand have their advantages and disadvantages, so it's important to compare them before making a decision.

The hardness of natural seawater is mostly maintained at 7-9dH. In the aquarium, the hardness of seawater should be controlled at 7-9dH.