How Long Are Tropical Fish Pregnant For

How Long Are Tropical Fish Pregnant For


Tropical fish are wonderful animals that inhabit tropical environments around the world. They stand out for their bright colors, and that makes them the most popular fish when it comes to creating an aquarium at home or anywhere else. Most of the tropical fish used to inhabit aquariums come from export centers or hatcheries.

Fish can reproduce in different ways: the oviparous, which expel the eggs and then the fry grows in the external environment; the ovoviviparous, where the fries also hatch from eggs but remain inside the mother until they hatch; and the viviparous, which are the animals that simply give birth to their fries after they have developed well within their organism. Most tropical fish tend to be ovoviviparous orviviparouswhich, after they are born, immediately swim free and independent from their parents.

In order for fish to have a normal life cycle and carry out their natural process, one of the factors that most influences is the temperature of the water in which they live. They can easily subsist in ecosystems that hover around 21-29 degrees Celsius, with an ideal temperature of 25 degrees Celsius. It will also depend on the species and the habitats each one comes from.

A unique characteristic of fish is that there is no single model of reproduction, on the contrary, there is an immense variability, and it is highly influenced by the environment they inhabit. That is why, in natural habitats that fits them sexually,fish are able to identify the right places and the best time to reproduce. So, the act itself of reproduction occurs in spaces with optimal conditions of temperature, oxygen, pH and currents. And this will also affect directly the gestation times.

Reproduction also involves various physiological factors that are physically controlled by the pineal gland, the hypothalamus, the pituitary gland, the liver and the gonads. The time of development of this whole process within the same gestation period of tropical fish varies according to the species and the environment itself.

Mainly, for breeding to occur, it is vital to have a male and at least three females in the habitat. Comparing some species of tropical fish, we find that for the Platys, after the male fecundates the female, they take 30 to 40 days to give birth and can have between 20 and 300 fingerlings. While the species Molly varies its gestation period from 4 to 7 weeks andthe Xipho breed between 4 to 6 weeks, depending on the temperature (the higher the temperature, the shorter the gestation period). And the Velifers can have a gestation period of 8 to 10 weeks.

Something curious about these fish is that the female is able to store packages of sperm after a single fecundation. So, after a while, a female can be pregnant without needing a male around. In conclusion, the tropical fish can be pregnant for about 4 to 10 weeks on average, depending on the species.

Tropical fishes are animals that anyone who loves having aquariums must to have in there. Is good for these people to know that tropical fishes are easy to maintain, and there are several guides on how to take care of them depending on the species.


Top 5 Most Endangered Fish Species that might Disappear Soon

Top 5 Most Endangered Fish Species that might Disappear Soon


Fish is one among the species that go for a lot of catch every year, and doubtlessly some of the species become endangered, and their existence becomes a question mark. Though a lot of measures are taken by different departments, sometimes it becomes highly impossible to save a particular species from going into extinction. So here we have listed the top 5 most endangered fish species.

Bluefin Tuna

Bluefin Tuna:

Bluefin Tuna is one of the largest growing fish in terms of size. It can grow unto 10 feet and can roughly weigh about 1400 pounds. The main reason for their extinction is the hunting habits that prevail amidst the commercial fishermen. The rate of one Bluefin tuna can go up to one lakh dollars. It is highly influencing the commercial fishermen to hunt on the Bluefin tuna. The Bluefin tuna belongs to the fighter category. This species is known to travel 1000 miles across the ocean.

Maltese Ray:

With the hunting habits of men, the nature of this species itself is causing it to become an endangered species. It belongs to the slow-growing category, and it matures late. But the biggest drawback of all is that they don’t interest fishermen in any way. This probably doesn’t look like a drawback. But if you learn a little more about it, these are sized small, and they might get into the trap quite easily. Though they are thrown back, they are mostly in dead, or half dead state and chances of them surviving goes down. They have largely gone down in numbers and exist only in small water bodies.

Goliath Grouper:

It is a widely known fact that the grouper varieties are usually a little extinct in nature, but this particular grouper named the Goliath has gone way too endangered. Also, this is quite similar to the previous type we spoke about that is the Maltese Ray. The reproduction system is quite slow in these species causing them to become much more endangered as they die even before they can replicate in huge numbers.

European Eel:

Again fishing habits of the people play a major role in endangering the life of these species. In fact, the fishing habits are quite overboard when it comes to hunting the European eel. When the hunting habits are way beyond the limit, this restricts and collapses the reproduction cycle of the fish and prevents it from growing in numbers. The European eel can exist only in the freshwater but if the way is blocked or a face any threat and unknowingly get to salt water the die soon.

Bocaccio Rockfish:

Again Bocaccio Rockfish is one of the largest endangering species due to the lack of time that they get for multiplying in number. With the motto the save this species from reaching the endangered state a lot of fisheries were also closed by the government, but the desired results aren’t achieved yet. It can take about ten decades for their recovery but there high chances that in the meantime they can go extinct.

The Top 5 Largest Aquariums in the World

The Top 5 Largest Aquariums in the World


It is always a great feeling to experience the unknown, and the underwater world is one such thing. No all are blessed with the opportunity to deep dive inside oceans and seas and experience how the underwater world is. So this feeling of reaching the oceans and experiencing how different species function undersea can be known by visiting large aquarium it is also an intimate experience, unlike the ones that you experience in seas and oceans. So here we are listing the top 5 largest aquariums in the world.


Georgia Aquarium:

Georgia Aquarium is the largest aquarium in the world with million gallons of water. It is the only place apart from Asia to house shark in them. This is the major reason as to why they have such a big water back up. However, there are issues with regard to caging sharks. Sharks aren’t something that you can tame, and at the same time, they can develop health issue when housed in one place with nowhere else to go. The intensity of the issue increased after the death of the sharks that were housed here.

Dubai Mall Aquarium:

It is quite unlikely if Dubai hasn’t gotten something that has to do with the largest or the best in the world. So here you have an aquarium as well in the mall. The aquarium has about 2.63 million gallons of water filled in it.  For a rough count, more than 33000 residents live here in this aquarium. Needless to say, the aquarium in Dubai also holds a record for the largest acrylic panel in the world. The aquarium forms a part of the Dubai mall that is one of the largest malls in the world.

Okinawa Churaumi Aquarium:

With 1.98 million gallons of water in it and with more than 20 million visitors every year, Okinawa Churaumi Aquarium takes the third place on the list of largest aquariums in the world. The aquarium takes its residence in the Ocean Expo Park in Japan. The aquarium is big enough to accommodate the reproduction cycle of sharks and other big species of the kind. The aquarium was opened in the year 2002.


The aquarium is filled with 1.85 million gallons of water, and this is the reason why they make it to the fourth place on the list.  It is also known as the complex of science and is located in Valencia, Spain. Though it is technically smaller than the other aquariums on the list in terms of water capacity, the aquarium houses about 45000 animals that makeup to 500 different species from across the world. The aquarium was opened in the year 2003.


Turkuazoo was opened in the year 2009 and is one of the largest aquariums in the world. It consists of about 1.85 million gallons of water in it. Unlike the first three on the list, this aquarium isn’t designed like the usual one. It begins at the midway of the wall goes over your heads and reaches the other end of the wall almost like making a 1800 pathway, which is the best part about visiting this place. The aquarium houses some of the rarest fish types in the world.