It is suggested to add 50 liters of outer filter barrel (oil film absorbable and bottom suction), three layers of ordinary coarse filter cotton, four layers of middle filter cotton and all other biochemical cotton. Then it is connected to the self-contained filter tank, and all the self-contained filter tanks are filled with things that can cultivate nitrifying bacteria.
Ordinary coarse filter cotton is still very cheap, just take off the top layer and add a new layer below.
Two are almost the same, but other filters are indispensable. The physical filter should be at least 1/3.
As long as the fish are not sick and the algae are not growing, there is no need for ultraviolet lamps. If you want to add the back of the filter tank, it is opaque and airtight, and ultraviolet rays are not good for fish.
Just change the temperature probe of the same model.
Choose imported air pump, mute is better, but it can't be absolutely mute.
Extended data:
Fish tank, a kind of water tank for live fish, has a transparent cylinder, mostly made of glass, and can also be used to raise tropical fish or goldfish for viewing.
The fish tank is not only the home of fish, but also the enjoyment of family life. The flawless double-layer float glass not only creates a warm home for fish, but also ensures the safety of the overall living environment. Fish tank is an indispensable ornament in home geomantic omen, which is perfectly combined with space and is the soul Zen master in home, office and commercial space.
References:
Fish tank-Baidu encyclopedia