(true or false) do fish grow to their environment?

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Giant gourami is a classic case, rarely suffers from any sort of stunting just grows and grows no matter the size of the tank. I know of a guy who's fish literally out grew the tank and couldn't turn around and smashed itself to death on the hood one night
 
One thing I do remember was reading an article in AFI about a study where scientists packed a bunch of salmon or trout, I can't remember which, into a small holding area. They kept the water as clean as possible, with clean water always flowing in. Ultimately, what happened was that the fish actually kept growing until the tank was so full that they were almost packed like sardines, like they couldn't even move.
There's another point against growing to the environment. The score is now:
Growing to the Environment-0
Logic and Science-2
 
Most fish release a protein into the water that when injested will hamper growth. Its this protein that is the source of the saying "Fish will grow to fit the environment". If you then trap out a bulk of the fish then the ones left will resume a more normal growth pattern.

This is also one of the reasons why so many water changes are needed when people are trying to grow fish quickly (see discus, or any fishfarm)

John
 
yeah eveyone is right, just think of it as, would you keep an elephant in house its whole life, yeah it might fit for a little bit but then it will continue to grow. so i would research any and all fish and make sure you provide the proper care and housing for any type of fish.
-acer-
 
Yanbbrox;2378828; said:
Giant gourami is a classic case, rarely suffers from any sort of stunting just grows and grows no matter the size of the tank. I know of a guy who's fish literally out grew the tank and couldn't turn around and smashed itself to death on the hood one night


WOW
 
yeah fish dont stop growing
 
i thought it was just goldfish lol....not to self never believe my gran...she also told me thta the horses never got hurt in films...please tell me that ones true!!!
 
famous323;2379334; said:
That's not really my story, I changed jobs a couple of years back and there is a LFS very near by which is handy in emergencies although not that cheap, first time I went in they had two in separate tanks, at the time I thought 'hmmm both need a tank upgrade'

Fast forward a year and I needed a powerhead, after a chat with our night driver it turns out that his wife works in that store and he told me the story, sure enough only one GG left the other one apparently died of 'natural causes' according to the owner, the poor remaining fish can't even turn around properly any more and it will take at least a year before I can house it with mine in the new planned tank:(
 
People confuse growing to tank with growing to water quality. Like the example of the trout experiment, if clean water is always available, the tank size has nothing to do with growth. This is normally not the case however. Normally, if a tank is too small, the water quality is also often poor and that is what causes major stunting.

The fact that the "shop guy" told you this is true of turtles amazes me. Turtle growth is not only unaffected by enclosure size, but it's also less affected by water quality. Turtle growth is almost entirely a product of temperatures and diet. Habitat size only really come into play when it is physically impossible for the turtle's body to get bigger cause it's the size of the actual tank (which I would hope never happens, because if a turtle can touch all sides of its tank at the same time, no one in their right mind would keep it there)
 
false. fish do not grow to fit the environment. in fact, fish never stop growing throughout their lives. if in a tank too small, they get stunted. what that means is they BODY stops growing, but not the organs inside them. they become crushed, the fish has a poor life and usually dies years earlier than it would in a better suited environment.
 
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