Raising ornamental fish in aquariums has long become an elegant hobby for many households. One of the biggest difficulties that many aquarium fish farmers encounter is the sudden and unknown death of fish. Let’s join to find out the cause and how to solve this problem.

Causes fish to be unhealthy and die quickly

Fish farming water

This is one of the most common causes of sudden and mass fish deaths. If the living environment is contaminated by leftover food, fish feces, aquatic plant waste, algae, etc. then fish certainly cannot grow and develop well.

In addition, water temperature, pH, and chlorine concentration are also important for fish survival . Temperatures that are too low, chlorine levels that are too high from tap water, pH levels that are too low or too high all affect them.

Overfeeding

When we feed the fish, we will see them constantly biting the bait. But don’t think they are hungry because biting bait is a fish’s instinct. If you feed the fish too much, it will cause them to bloat and die. In addition, it also produces a lot of algae that pollutes fish farming water.

Lack or excess of oxygen

There are many new and inexperienced aquarium hobbyists who buy tanks that are too small but stock them too much . There was no supporting equipment in the tank, which hindered the fish’s breathing, causing the fish to die.

On the other hand, support equipment operating with too much power makes the fish tired, and over time it will also kill the fish

Common diseases that fish often encounter are fungal diseases, parasitic bugs on the body, ulcers, torn flesh due to fighting without timely treatment,…

Farmed fish are not suitable

There are species of farmed fish that are not suitable to live together. They fight, injuring their bodies, tearing their fins, tearing their bodies, causing the fish to become sick and die,…

Light

People, plants,… all need light to grow and develop normally. And of course, the same goes for fish. If they live in an environment with insufficient light and ventilation for a long time, the fish will lose color and die.

Fish sold on the street, not of good quality

To be honest, street fish that are kept in plastic bags with a little water without adequate oxygen supply will definitely have weaker health and immune systems than regular fish. . So that could also be a reason why your fish died for unknown reasons!

How to care for ornamental fish in the tank to keep them healthy

So we now understand the direct and indirect reasons why ornamental fish kept in aquariums are unhealthy and die quickly, right? Raising fish is also an art that requires players to have skillful techniques. Now let’s follow Bach Hoa Xanh to learn how to keep fish healthy.

Food problems : Do not feed fish too much, it is best to feed once a day . In addition, you should give a small amount of food so that the fish can eat it all within 5 minutes, to avoid leaving leftover food to pollute the water source.

Worms : Keep the worms in a separate, hygienic basket to avoid letting the worms fall to the bottom of the tank and leave them dirty for a long time. In addition, when you put the worms in the basket, each worm will fall through the hole so the fish can bite each one, helping to keep the fish from being too full.

Dry food in large round pellets : Soak in water for about 3-4 minutes before feeding the fish, avoid letting newly hatched food feed the fish, causing the fish’s belly to swell.

Respiratory problems : Make sure there are enough fish in the tank , not too many fish that hinder breathing. Use equipment to support fish breathing (aerator, air bubbler, water purifier, etc.) with moderate intensity, use a larger tank, etc. to help your fish stay comfortable. Jump around in the tank without lacking oxygen.

Fish water problem : Tap water has too much chlorine, drain it into a basin, let it sit for a few hours to reduce the smell and then use it again as usual. In addition, you need to buy pH concentration reagents to be able to increase or decrease the appropriate pH amount for your fish.

Another suggestion is to clean the tank regularly to always keep a clean environment for the fish.

Note that when changing water, you should only change ¾ of the water in the tank to maintain the fish’s familiar environment

Temperature : Buy a suitable heater for the fish to wait for winter to come.

Lighting : Keep the aquarium in a place with natural, well-ventilated light. If not, you can also buy a biological lamp sold at aquarium stores and remember to only turn it on for 8-10 hours !

Sickness : A UV lamp to kill bacteria and brown algae in the tank will work to protect your fish. In addition, you also need to see a doctor to get advice on appropriate medications.

Fish that are not suitable for farming : Please research and ask for advice on which types of fish can live together in the same tank ‘peacefully’.

Buy fish from reputable locations : Fish that are raised and cared for carefully will have good health and a long life. So go to famous establishments to choose healthy fish!