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# How to calculate the weight of water for the aquarium

Metric system of measures: multiply the length of the aquarium by its width and height, expressed in centimeters, to get its volume in cubic centimeters (cm3). Divide this value by 1000 to convert it to liters.

1 liter of water weighs 1 kilogram.

English system of measures: multiply the length of the aquarium by its width and height, expressed in inches, to get its volume in cubic inches. Divide this value by 277.36 to convert it to English gallons.

1 gallon of water weighs 10 pounds.

Also important is the shape of the aquarium. Fish usually swim horizontally rather than vertically, so the traditional elongated rectangular aquarium best meets the needs of the fish. High and narrow “towers” have a relatively small area of ​​water surface.

In fact, such aquariums are high-altitude versions of small aquariums with goldfish, considered in our time as a symbol of cruelty. The value of an aquarium as decorating a room should not be determined by its shape, but by the attractiveness of the underwater world contained in it with healthy plants and fish.

Plexiglass (acrylic) aquariums are produced industrially, as are silicate glass tanks. However, some stores offer high-quality glass aquariums, which are made anywhere to order.

Such aquariums can be cheaper because there is no additional overhead in their cost (for example, transportation costs). It is advisable to check that it was the new glass that went to make the aquarium, and not the old window glass from the store.

To do this, carefully look for scratches on the glass. In addition, the glass should have the desired thickness, and the upper edges should be properly reinforced with sides (compare with an industrial aquarium).

Industrial aquariums often have a plastic frame, which is usually purely decorative (it covers the joints of the glass).

### The stand for the aquarium can have a different design:

• Special cabinet for aquarium, usually made of wood. At the bottom there is a compartment for external equipment and storage of necessary supplies. For the living room this is probably the most attractive option, but at the same time the most expensive.

Make sure that the material and design of the cabinet are such that they can withstand moisture and weight of an aquarium filled with water.

• Stand of welded metal profiles, usually painted black or white or with a plastic coating of the same colors.

• Any piece of furniture or built-in furniture (shelf or cupboard). It must be strong enough to support the weight of the aquarium and water.

If you have doubts about this, seek professional advice.

• Paul. This is not ideal in terms of ease of observing the aquarium.

• At one time, some low-income aquarists made very good coasters of concrete blocks or bricks stacked on top of each other, and a thick, stout board was placed on top of them. Such “creativity” can be visually hidden.

The stand should have a perfectly flat surface, which put the aquarium. Curbstones, as a rule, have a suitable surface, however metal supports and some items of built-in furniture (for example, a stone fencing of a fireplace) do not have such a surface, therefore, a strong foundation for an aquarium should be placed on them.

The best-suited sheet of moisture-resistant plywood of the desired size, intended for outdoor use or for use in the sea, with a thickness of at least 1.25 cm. Such plywood can be purchased in stores building and finishing materials.

Do not use for this purpose plywood intended for internal use, chipboard or wooden boards – they will swell and rot when water drops fall on them, which is almost inevitable.

In addition, the bottom of the aquarium should be protected with a polystyrene foam pad or thick fabric of appropriate thickness and size. The gasket will help to compensate for any unevenness of the stand – without this precaution the bottom of the aquarium can crack.

The cover of the aquarium is needed to keep the fish in the aquarium. Without a lid, some fish can jump out or even crawl out of an aquarium — for example, members of such families as the karium and snakeheads.

In addition, the cover prevents dirt from getting inside the aquarium and serves as a barrier for children and pets. Lighting devices are located on it (see below). Sometimes it has sockets for connecting other electrical equipment.

However, such a “tee” is better placed outside the aquarium and protect it from the slightest danger of contact with water. Therefore, the presence or absence of additional sockets in the lid should not particularly bother you.

As for the aquariums that are sold with the cabinet, they usually have a cover of the appropriate size.

Covers for the most part have a window that provides access to the aquarium. Make sure the window handle has the right size and shape – it should not slip out of your fingers if they are wet.

The lid must be equipped with integrated cover glasses or plastic trays for condensate collection. This is necessary so that evaporation of water is minimal, and the air space above the water surface has the same temperature as water.

This is especially important if you keep gouramies and other fish with additional respiratory organs that allow them to breathe atmospheric air. Make sure that cover glasses or trays provide access to the inside of the aquarium – otherwise you will have to remove the cover every time you want to feed the fish or change the water.

Some types of aquarium lighting require that the aquarium be left without a cap. In stores, aquariums also usually stand without covers.

Nevertheless, you still need to close the aquarium with cover glasses that also keep the fish in the aquarium, preventing dirt from entering there, etc.

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