Placing some rocks in the aquarium can not only increase the effect of the landscape, but also provide a warm and safe habitat for fish. The color and shape of the rocks can be chosen according to your own preference. Some hard rocks can be used for fish to grind their teeth, while some rocks with many holes can provide more hiding places.

When placing the rocks, you need to pay attention to, firstly, you need to put a layer of sand or gravel on the bottom of the tank to prevent the rocks from directly crushing the tank; secondly, you need to choose strong, non-toxic rocks to prevent the fish from being poisoned if you place them for a long time.

2, planting plants

Planting some plants in the fish tank can not only increase the oxygen content of the tank, but also provide a place for fish to live and swim. At the same time, water plants can also help to control the water quality and absorb the remaining bottom fish feces and food residues, thus reducing water pollution. And according to different kinds of water plants, it can also increase the decorative effect of the fish tank.

When planting aquatic plants, you need to choose the species of aquatic plants that can adapt to the environment of the fish tank, and regularly trim off dead leaves, expired flowers and grasses to ensure that the growth of aquatic plants in good condition.

3, coral reef decoration

If not only to achieve a decorative effect, but also want to create an ecosystem, you can consider adding artificial coral reef. As coral reefs not only increase the marine scenery in the tank, but also an important place for fish to live and swim, but also promote more natural behaviors of fish, making them healthier and more active.

It should be noted that coral reefs require a certain amount of light, and for different kinds of aquariums you need to choose the right coral reefs and prune them in time according to the growth state of the reefs in order to avoid causing harm to the fish.

4, artificial decorations

If you want a more modern, retro or alternative aquarium aquascape, you can try to use some artificial decorations to decorate the fish tank. There are many kinds of artificial decorations, such as using artificial seaweed to simulate underwater ecology, using artificial castles to simulate medieval castles and so on.

It is important to note that before using artificial decorations, you should know their ingredients and make sure that they do not affect the water quality and the health of the fish, otherwise they may cause adverse effects on the fish tank.