Since ancient times, indoor fish farming has been a part of many people's elegant life. Beautiful fish tanks and smart fish complement each other and can be used for viewing, adding elegance and improving geomantic omen. However, the fish tanks on the market are dazzling, with uneven quality and often different materials. What kinds of fish tanks are there? How to choose and pay attention to when choosing a fish tank? Let's have a look.

What kinds of fish tanks are there? Ordinary glass fish tank is the most common fish tank and its classification, which is characterized by emerald green, but not durable. If the transparency is not high, the appreciation effect is not good, and it is particularly easy to deform if it gets wet.

Acrylic glass aquarium is plexiglass aquarium, which is characterized by strong toughness, light weight, high transparency and high water pressure resistance. The disadvantage is that it is easy to scratch, but its surface can be re-polished.

Float glass fish tanks are popular, characterized by strong earthquake-proof and explosion-proof ability, non-fragile, high safety performance, good thermal insulation performance and relatively high price.

Tempered glass fish tanks, also known as strengthened glass fish tanks, have outstanding advantages in all fish tanks and their classification, such as strong compression resistance, four to five times stronger than ordinary glass, high impact strength and good thermal stability.

Crystal glass fish tank Its glass is crystal clear, but fragile. Aside from external factors, fish tanks and their classification are still the dream fish tanks of many fish friends.

Ultra-white glass fish tank is the choice of most fish friends in fish tank and its classification at present, because it has high transmittance, high visibility and is not fragile.

Method of selecting fish tank

1. robustness:

Commonly used aquarium brands include glass and acrylic. In order to bear the huge water pressure, it is necessary to make a safe aquarium by choosing the appropriate thickness. Generally, the wall thickness of an aquarium over one meter should reach 1CM, and so on. Of course, it is better to choose the finished acrylic cylinder.

2. Shape:

Common aquarium shapes are rectangle, square, circle, polygon and so on. , can be selected according to personal preferences, uses and home environment.

3. Length:

The length of the aquarium can be selected according to the purpose of decoration, and it is generally matched with the size of the lamp to achieve the best effect and economic benefit.

4. Width:

Generally, the width of the cylinder of 70 ~ 120 cm should be over 40, preferably 60CM, so that the four casings can be put down and the depth is convenient to beautify.

5. Height:

The water level is generally between 50 cm and 60 cm, mainly for the penetration of light waves! More than 60CM will affect the penetration of fluorescent lamps, and metal halogen lamps should be below 67CM. Too high a cylinder is not convenient for future maintenance. Of course, less than 50CM will affect the overall beauty (more than 2 meters is another matter, but pay attention to the choice of prospects).

6. Support degree of cylinder frame:

The water volume of the aquarium is (length * width * height/1000). One liter of water is equal to one kilogram, so the bracket must be able to bear the weight of 1.2 to 1.5 times the water volume to ensure safety (sand and stones should also be considered in the future).

7. Bottom sand:

Generally, coarse river sand, fine river sand (based on grass, such as drying grass), black sand and white sand (easy to get dirty) such as silica sand, silica sand and base fertilizer sand can be used in the market. Note that only Shui Rong can survive in alkaline water, so coral sand or other alkaline sand or stones can't be used generally.

8. Filtration system:

Not for the sake of price and space, of course, the bigger the better, the more the better, because this is one of the most important links. It is necessary to choose a set of filtering equipment suitable for your aquarium in a limited space. Because the concept of most domestic players has not changed, we will not introduce top equipment for the time being! In this range, I recommend the combination of external filter pump and built-in water pump motor. Note that the outer mold is better to be one size larger than the manufacturer's recommendation, and it is recommended to use two for the size above1.8m.! If you can afford to add a set of quicksand filter, it will be better to replace the water pump motor with "black diamond".

9. Carbon dioxide:

This is a very important link that beginners can easily ignore, as we know in junior high school biology class:

Plants absorb CO2 and release O2 (under photosynthesis) during the day, but the opposite is true at night. Generally, the CO2 concentration should be 10 ~ 20 PPM to meet the needs of aquatic plants. Of course, don't overdo it (it will make the fish lack oxygen and lower the PH value). I would like to remind you that the so-called CO2 tablets and powder generators of urban animals have no practical effect and may have negative effects. Only CO2 cylinders or electrified carbon chip generators can have practical effects. This is the most direct!

10. Constant temperature system:

Note: One liter of water needs one watt of power. In terms of species, tuber grasses such as negative aquatic plants, netted grasses and white gold weeds need to be below 26 degrees (preferably 18 ~ 22), while red aquatic plants like to grow well at high temperature of 26 ~ 30 degrees. Note: There are many inferior glasses in the glass market now, and the identification method is very simple. The glass thickness of good manufacturers will not be less, while the inferior glass, 5MM, is actually only 4.5-4.8, 8=7-7.5, 10=9.5, 12= 1 1, so we must pay attention to the choice.

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