The size of a fish is dependent on many factors. The most important factor is genetics. Also important are size of aquarium, amount and type of food, and environment of aquarium. Goldfish will grow much larger in an outdoor pond than they will in an indoor aquarium, unless it is a huge aquarium. Goldfish in my outdoor pond grow to between 8-10 inches in length.
No, a shark cannot grow in a fish tank because sharks require a large and specific environment to thrive, such as the ocean.
Bettas become particularly aggressive when they find other fish with large fins. This is an example of an influence in behavior. Fish can also be influenced depending on how many fish that live in the same tank. If there are little amounts of fish, they will grow quickly and large, as opposed to fish who are tightly packed in one tank, who don't grow as much and, sometimes, stuns their growth.
There is one way I know to protect fish is by building fish farms. There are large tanks that grow fish and control and regulate their growth, their food, and the water they grow up in. There are many advantages and many disadvantages as well.
It is impossible to make sure or guarantee that a fish will grow to a large size. But one can give a fish every opportunity to grow well and reach its maximum potential size. What you will need is a very large tank or pool large enough to house the fish comfortably when it is full size, a constant supply of fresh water, and a constant supply of suitable food available at all times. You will need to control the heat of the water, its pH and GH too. Provided you get everything right your fish will grow to its full potential.
When a fish grows as large as its environment it is an example of a limiting factor to the fishes growth. That is why a goldfish will grow larger with a larger tank.
it wont grow as large as if it was in a larger tank
A "tuna" is a type of marine fish, a sub-grouping of the mackerel family. Some species can grow to be very large.
bettas dont u sally grow more then 3 or 4 inches.
A well grown male can have a body size of close to 3 inches.
They commonly grow to around 14 inches but given perfect conditions can grow to up to 18 inches. They are essentialy fish for ponds or very large aquaria as are all goldfish.
jack dempseys can grow up to 8 inches and are native central America.
No, shubunkin fish will grow 9 to 18 inches long (23 to 41 centimetres). Koi can certainly grow 21 to 30 inches in length provided they are living in the right type of environment such as a large pond.