How to put coral sand in the aquarium sea salt tank？

Today we will tell you how to put coral sand in the aquarium tank.

The bottom sand is placed in the aquarium tank without a fixed pattern. Generally speaking, it can be divided into thin sand and thick sand. Everyone knows that once there are sand in the tank, after a period of normal operation, three major coral sand areas are established.

They are the aerobic zone on the surface , the micro-oxygen zone on the middle layer, and the oxygen-free zone on the bottom layer.

Nitrogen bacteria will produce hydrogen sulfide (H2S) and biogas (CH4) in the oxygen-free zone on the bottom layer. These substances are extremely toxic to organisms. The gas is transformed by other bacteria during the ascent process, and it also combined with some heavy metals. , it is basically non-toxic when it reaches the surface.

Careful aquarists will find that if you do not pay attention to care, the bottom sand will have algae after a period of time, and will turn green or even black or red. Therefore, we must pay attention to clean the bottom sand regularly.