If there are already fish in the tank, it is best to fish them out and then plant aquatic plants. Before planting, you need to spread aquatic plant mud on the bottom of the tank and then scatter the seeds on top. It usually takes two days to put the fish back. There are many types of aquatic plants usually used, such as moss, peppergrass, water ficus, dwarf pearl, iron crown, cow felt, etc. These aquatic plants have different habits, some like shade and some like sun. 1. How to plant aquatic plants when there are fish in the tank

If there are fish in the tank, you need to fish them out first if you want to plant aquatic plants. If there is no mud at the bottom of the tank, you need to drain the water, add aquatic plant mud, and then plant aquatic plants on top. If there is mud, you can just throw some aquatic plant seeds and wait two days before putting the fish back. It should be noted that if it is some fish that likes to dig up the sediment, be sure not to put it in too early, otherwise it will destroy all the aquatic plants. 2. What kind of aquatic plants are better to plant

1. Moss: Moss is one of the most common aquatic plants. Unlike many aquatic plants that require light, it prefers shade and can be attached to stones or driftwood. to better simulate the natural landscape and look very beautiful. In addition, this aquatic plant also has the effect of purifying water quality and absorbing waste excreted by fish.

2. Peppergrass: There are many types of peppergrass, which are clumping aquatic plants with wrinkles on their leaves. They prefer strong light environments and can survive in weakly acidic and neutral water bodies. This aquatic plant is not tall, usually only about 10 centimeters, and is suitable as a middle or foreground grass.

3. Water fig: Water fig is also one of the more common aquatic plants. Its rhizomes are very strong, not easy to break, and will not die in the short term. However, if the water quality is not good, it may dissolve the leaves and eventually disappear. In addition, its reproduction speed is very slow, so it is not easy to become a landscape.