Главная 7 Aquarium 7 Frequently asked questions: part 7

Frequently asked questions: part 7

We continue to study the topic of frequently asked questions from novice aquarists, and today we have questions related to unwanted guests in the aquarium.

Question number 1 – In the aquarium, where I breed fish, fry began to disappear. When I looked closely, I saw that there were small translucent creatures on the plants, similar to the roots of plants. Friends said that most likely you have a hydra who ate all your fry.

How to get rid of hydra, and what they are dangerous?

And most likely, your friend is right, since these undesirable invertebrates really settled in your bank. Hydra is a primitive unicellular, which refers to the intestinal cavity invertebrates. At rest, the hydra resembles a gelatinous stalk, which, with its sole, is attached to plants, bark and stones.

At the other end of the “stalk” there is an oral opening with small tentacles.

If you disturb the hydra, it will shrivel and become like a gray gelatinous lump. These invertebrates move around the aquarium like caterpillars, attaching to the substrate either with their sole or their mouth. In nature, there are a great many hydras, the size of which can reach up to 2 centimeters.

These parasites get into our aquariums from a natural reservoir together with plants or food. In an aquarium, these are parasites that feed on fish food and the fry themselves.

Moreover, the fish can suffer from poison, which is released from stinging capsules. If feed is abundant in your tank, hydra will multiply at terrifying speeds. How then to get rid of the hydra?

Here only a radical way is effective: to catch all the fish, and all the aquarium decorations are eliminated, and the soil can be used again, but after washing and heat treatment.

Question number 2 – In my tank there are many small living organisms that look like white dots. The water eventually became muddy, and the aquarium lost its aesthetic appearance.

What it is?

Most likely, tiny single-celled organisms – ciliates – began to multiply massively in the aquarium. The appearance of these unicellulars in an aquarium is a sign that you have an excess of organic compounds. Infusoria appear as a result of irregular cleaning in the aquarium, or you give your pet too much food.

As you probably already know, the remnants of food not eaten can provoke a massive reproduction of bacteria, which feed the ciliates.

Question number 3 – In the aquarium, there were small white worms that crawl to the glass of the aquarium. What is it and can they eat fish?

Apparently, planarians appeared in your tank. These white worms enter the home aquarium from contaminated cans or natural ponds. The largest planarians can be several centimeters in length.

Worms slide along the ground in search of organic debris and microscopic crustaceans.

Planaria in the aquarium highly unwanted guests. They are happy to eat the larvae of fish and caviar, as well as the food that you give the fish in large quantities.

The massive development of a planarium in an aquarium is possible only if you feed your pets enough and do not follow the cleanliness of the home water. There are several ways to deal with planarians, which you can learn about in this article.

Question number 4 – On the glasses of the aquarium appeared tiny flat circles, in the middle of which there is a dark spot. When I tried to remove them, it was crushed.

What is it and how to get rid of it?

Congratulations, gastropods have appeared in your aquarium, of which there are many species. Some of them, when released into an aquarium with plants and live food, settle safely and actively reproduce.

These shellfish are also unwanted guests in the home aquarium, as they spoil its appearance. The mass appearance of mollusks is due to an excess of fish food.

Therefore, in addition to the mechanical cleaning of glass and decorations from mollusks, you will have to monitor the cleanliness of the aquarium.

Question number 5 – Today I bought plants on the market and at home I saw that a small cone-shaped snail was entangled in the roots of the plant. What kind of snail is it?

I think this is a snail melania that lives in freshwater bodies in Egypt and India. Unfortunately, this snail perfectly adapted to life in home aquariums.

Since melania most of the time is spent digging in the ground. The optimal type of substrate for these snails is coarse river sand with a fraction size of 2 to 3 millimeters. In substrates with a larger fraction of the cochlea can not dig.

In shallow soil snails may experience difficulties with water exchange and with a lack of oxygen, they crawl out.

In aquariums, melania feed on the same food as other mollusks: algal fouling, food debris, dead plants and fish excrement. Despite the fact that melania most of the time is spent in the aquarium soil, they do not touch the root system of aquatic plants.

In fact, these snails can be called nurses, as they loosen the sand, improving its gas exchange.

But in spawning aquariums, melania are parasites, as they destroy fish eggs. Melanias are viviparous snails.

If there are no enemies in the aquarium that feed on mollusks and an abundance of food, then these snails will safely multiply exponentially. If the mollusks leave the ground and sit on the walls of the aquarium for a long time, it means that there are unfavorable conditions in the aquarium, especially in the ground.

First of all, it is a signal to the aquarist that the oxygen regime is disturbed in the substrate.

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