Best 5 Cool Freshwater Aquarium Fish- Keep your home aquarium

Some tips to keep 5 cool freshwater aquarium fish

Many people are so much confused how to choose freshwater aquarium fish to keep in aquarium. Most are afraid how to care and maintain this fish. So now I helping you through this post how you can keep freshwater fish and easily care your own.

1. Goldfish

Goldfish is one of the most popular freshwater aquarium fish, quite deservedly loved by aquarists for an attractive appearance and peaceful disposition. There are several varieties of goldfish, let’s talk about each of them.

Bubble Eye

This variety was obtained as a result of the selection of Chinese silver crucian carp, in the aquarium, the Bubbly Eyes grow to 15-20 centimeters. The body of the fish is egg-shaped, with a low back, the profile of the head smoothly turning into the profile of the back. Coloring varies, most often brown, orange and silver colors are found. In the eyes of individuals, there are characteristic bubbles, which seem to hang on both sides of the head, they are very vulnerable, therefore, these goldfish can only be kept with peaceful species. The water temperature in the aquarium is 20-24 degrees, pH 6.0-8.0, hardness up to 18. Be sure to equip the reservoir with filter and aeration, change water weekly to a third of the volume, feed the animals to moderately twice a day.

2. Discus fish

It was believed that Discus fish is very fastidious and difficult for the content in the freshwater aquarium fish. In fact, all problems are easily solved, the main thing is to find out in time what conditions to create these beautiful fish. To choose a suitable aquarium you need based on the number of fish – it is desirable that the discus had enough space for swimming. For an adult, you need at least 40 liters. The width of the aquarium should be at least half a meter.

Aquarium requirement

In the tank it is necessary to maintain a constant temperature from 28 to 35 degrees – the discus is thermophilic.

For representatives of this species, full-fledged lighting is very important. As for the soil, its presence is not necessary, since it greatly complicates the cleaning of the aquarium. Plants need to be selected correctly because at such a high temperature they will need intensive lighting. It can be cryptocoryne, broad-leaved amazon, horizontal echinoderms, dwarf amazon, floating horny fern, Riccia fluitans, Javan moss and others. You can also use stones, snags, and grottos as decor elements.

The aquarium should be constantly filtered, you can install ozonizers or ultraviolet to clean the water of harmful microorganisms. Regularly it is necessary to change 30-40% of water, on special farms of discus experts change up to 90% of water per day. As for the acidity of water, it is necessary to maintain it at the level of 5.5-6.5 pH. The temperature should not fall below 27 degrees, especially careful to be when transporting fish – a small mistake can cause the death of discus.

Feeding Fact

Most aquarists agree that discus should not be fed with live food, the same bloodworm or tubing can become a source of the disease. To feed the animals, live food is frozen, before treating it with a formalin solution and thoroughly washing. You can also feed the discus with self-made feeds from a mixture of shrimp meat and beef heart. Ready dry food is sold in pet stores, but are not cheap. If possible, you need to diversify the diet of the inhabitants of the aquarium – add to their food plants which fish will pluck, dry vitaminized feed. Feed adult fish three times a day, fry up to 6-8 times a day.

3. Red Nose Tetra

Red Nose Tetra are Size up to 6 cm. Dwells in the headwaters of the Amazon River. The female of the Red-footed tetra differs from the male by a complete abdomen. Contain in an aquarium densely planted with plants and having free areas for swimming.

Water for maintenance

Water maintain  GH up to 15 °; PH 6.0-7.0; T 22-24 ° C. Preparation of manufacturers, as in another characin. In spawning on 20-30 l plant 2 bushes of the broadleaf plant (cryptocoryne or echinoderms). Producers of eggs do not eat.

Water for breeding

Breeding for water condition is GH up to 3.0 °; PH 6.5-6.8; T 26-28 ° C. Carbonate hardness is minimal. Spawning of the red-nosed tetras occurs the next day at dawn. The spawner is installed so that the light from the window falls on it. Feeding fry is common for characin.

4. Denison Barbs

Denison Barbs is a very impressive freshwater aquarium fish, which can become an authentic decoration of any capacious decorative capacity. Unfortunately, it is still rare in amateur collections, since it fell into the orbit of decorative fish culture only at the very end of the last century. Looks great in a shady aquarium, arranged in dim, deaf tones. When decorating the container, you should take into account the dynamism, the quickness of Denison’s barbs and leave plenty of space for them to swim. Areal is the south of India.

Aquarium Size

The maximum aquarium size is 20 cm (in aquariums, usually no more than 15). The minimum volume of the aquarium is 150-200 liters per group of 4-6 teenagers. Suitable for keeping in closed ornamental ponds and swimming pools. Optimum conditions of maintenance: Т = 15-27оС, dGH 5-25о, рН 6-8, pure, oxygenated, free of mechanical suspension and high concentration of dissolved organic water, effective filtration.


Any fast-flowing frozen and dry flakes of the known manufacturer. Approximate size of the barrel of Denison is 8 cm.

5. Pearl Gourami


Pearl gourami is increasingly found in amateur aquariums, this fish is surprisingly beautiful, although rather capricious. For the first time this species was recognized in Europe in 1933, in the Soviet Union it appeared somewhat later – in 1949. The natural range of its habitat is the Malay Archipelago, Sumatra, Thailand, Borneo. Inhabits fish in small lakes and ponds, densely overgrown with grass.

Body Shape

The body of the pearl gourami is oval, with the sides strongly flattened, these individuals grow to 11 centimeters. The color is very noteworthy, in honor of which, in fact, the look got its name – the main background is light silvery, with a purple hue, white pearl points are scattered over the body. The back is pigmented with light olive color. The chest, abdomen and part of the gills are painted reddish. A mottled, unevenly colored dark strip passes through the center of the trunks.

The anal fin extends from the caudal fin to the anal opening of the fish. Dorsal fin elongate, in males it is more acute, caudal fin of fork type. The pectoral fins are colorless, and the ventrals resemble a mustache – with their help, fish can touch objects and other fish since the sight of gourami is rather weak. The pearly gourami has a rather small mouth, so feed it only with small fodder. These inhabitants of the aquarium are rather fearful, so they often hide in thickets of plants. With good care can live 5-7 years. During spawning, males are especially easy to distinguish from females – “pearls” shine on his body, and the abdomen and chest are painted red.

Interesting facts about Pearl Gourami

Pearl Gourami as a freshwater aquarium fish is belong to the trichogaster group, pearl fish have a very interesting structure of the mouth – they can slightly raise the lower jaw and pick up the food, both in the water column and from the surface.

These are graceful and peace-loving fishes that coexist with other neighbors, but on the condition that they are not too different in size.

These are the most capricious representatives of the genus gurami, very sensitive to temperature changes and transport.

This is a labyrinthine fish that breathes not only with gills, but also swallows oxygen from the air, so when transporting, make sure that the container is only half filled with water.

Maintenance and care of Pearl Gourami

If you have a species aquarium, then for 6-7 fishes there will be enough volume of 50-60 liters. Most pearly gouramis contain 2-3 females and 1 male. The aquarium is loosely covered with glass or a lid, the space under the glass should be ventilated to ensure the inflow of atmospheric air. Lighting fish like a bright – it can be both artificial and natural, and color in bright light will only benefit.

When choosing a soil, pay attention to the large river sand, dense thickets of plants are planted in it – after all, the gourami are quite shy creatures, so they should have both shelter and a place for swimming. You can plant elodea, pinnacle, a little duckweed. Pearl gourami – heat-loving fish, so the temperature should be kept within 24-27 degrees. If it falls below, the fish can catch a cold. Water hardness is not the most critical parameter, water should be slightly acidic or neutral pH 6 or 7.

Some facts to care

As for compatibility, there may be problems: gourami – the fish are peace-loving, so even varieties can be offended by several times smaller than a small fish. If you do not want to arrange a species aquarium, then pick peace loving neighbors right up to the guppies or nitenos. Feeding pets better live food, but also pearl gurus with pleasure eats dry food. They have a small mouth, so because of their anatomical features, they can not eat large meals. Between spawning, it is possible to give small crustaceans, chopped tubule, and bloodworms.


I want to help you through this article and also want to easily care your favorite freshwater aquarium fish as your own. I try to gather all important information about 5 cool freshwater aquarium fish. Hope you enjoy.


Rashed Ahmed regularly contributes to lifestyle magazine online and living ideas to various blogs around the web. When he’s not busy working with the work, you will find him undertaking many of her own lifestyle-related topics and living ideas! He has a lot of dreams. He works hard to fulfill his dreams. He loves to share his ideas, tricks, tips, and information by blogging. He also works at innovative business ideas, a business marketing company that committed to helping businesses with online marketing.

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