A genus of the family aponogetonaceae. Aquatic rosette plants with underwater leaves and some species with floating. The leaves have long petioles, the leaf blades of the underwater leaves are…

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Tips on the number of fish in the aquarium
A huge number of diseases in fish appear due to low water quality, so the main thing for you is to maintain the water in the aquarium in good condition.…

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Texas-Panama. Length - up to 9 cm. the Body is high, compressed from the sides. The color is silver, with a brass sheen. The top is olive, in the back…

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Tips on the number of fish in the aquarium

A huge number of diseases in fish appear due to low water quality, so the main thing for you is to maintain the water in the aquarium in good condition. If there are too many fish in the aquarium, it will be very difficult to maintain the water quality at the proper level, which will lead to diseases in fish and problems in you! Therefore, it is best to study the issue in advance and choose the right size of fish and their number, this will avoid many problems in the future.

Typical error
The most common mistake that people make when settling the aquarium is the calculation that the fish sold in stores are adults. The stores sell fry, and when they grow to full size, it turns out a very overcrowded aquarium or worse-an aquarium in which the fish can not normally accommodate. To avoid this, you always need to find out detailed information about the fish that you plan to purchase.
Be sure to clarify the Latin name of the fish to prevent confusion in common names, which can vary significantly.

Another thing to remember is viviparous fish, such as guppies, horseshoes and others. If there are such fish in the aquarium, then very soon you will see how quickly they multiply! It is necessary to be able to move fry somewhere to the aquarium is not overflowed. If this is not possible, it is worth thinking about how to buy for the aquarium only females.

Following these General guidelines does not negate the need for regular water changes!

Cold water aquarium
As a General rule, 4.5 liters of water for every 2.5 cm of fish length

For goldfish, the more space – the better! An aquarium of 115 liters will be enough for 1 decorative goldfish. For each additional individual, an additional 38 liters of water will be required. Goldfish grow to at least 15 cm, so they need a lot of space to swim. The smallest length of the aquarium suitable for adult goldfish is 90 cm. Young individuals can be easily kept in a smaller aquarium, but they must be moved to a large aquarium or pond as soon as they grow up.

Tropical aquarium
The General rule is 4.5 liters of water for every 2.5 cm length of the fish, with an increase in the quality of water filtration, you can gradually move to 4.5 liters for every 5 cm length.

To begin with, until the fish grow up, you should proceed at the rate of 4.5 liters for every 2.5 cm. it is Necessary to monitor the quality of water and monitor how the environment behaves with the current number of fish, you should pay special attention to how quickly the concentration of nitrate (NO3) will reach 50 parts per million, as well as the number of water changes and the volume of water per shift. Then, based on this data, you will be able to determine whether it is safe to add new fish to the aquarium. If you doubt something, you can always contact us on the forum!

Marine aquarium
The General rule – for reef aquariums 18 liters water on every 2.5 centimeters length small fish, in aquariums only with fish – 9 liters on every 2.5 centimeters length.

Marine fish are more sensitive to nitrate, nitrite and ammonia than freshwater fish, so more water is needed per individual than in a freshwater aquarium. Some marine fish sold in the store can reach very large sizes, so be sure to learn more information about adults before you buy fish.

The General rule-454 liter water on every 25 centimeters length fish

Some species of fish living in ponds can reach very large sizes, so you should be very careful when choosing – if you have a small pond, we advise you to stop at goldfish.

It should be remembered that the number of fish in the pond can increase very quickly, so you should be prepared for the fact that some of the fish will have to relocate if the pond becomes overpopulated.

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