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Thread: Stunted fish?
01-03-2013, 07:34 PM #1
I work at a fish store and many people will come into the store and mention the fish in their tank. Every couple weeks or so someone will mention a fish that isn't nearly full grown, and then mention that they've had it for many many years. For example today someone mentioned they had a 2 kissing gouramis that were about 3 inches, and that they'd had them for 4 years. I've never been sure as to why these fish aren't growing to their maximum size, or even close to it, in such a long time. It always prompts me to ask about tank size, feeding schedules, etc., there never seems to be anything wrong with what they're doing. Sometimes the tank might be a little small, but not so small it should be effecting their size. It's not just kissing gouramis, in recent weeks I have had this same conversation about angelfish that never got more than 2 inches long, and again about a chinese algae eater that never got more than 3 inches.
Why do these fish not get bigger? Any guesses as to what is stunting their growth? Or is there a smaller breed of these fish that I am not aware of?
01-03-2013, 07:53 PM #2
Not enough water changes.
01-03-2013, 07:58 PM #3
Bad quality condition is my guess. Every single situation is individual though... I have seen blue gill in 10 gallon tanks breed (some kid in college did a science paper on it)... fish are miraculous things and can do many things.FW: 1 45gal, 1 40gal, 3 10gal, 3 30gal all community tanks of different species
Sw: 1 55gal, 1 30gal show, 1 29gal show, 1 20gal and 2 10's
01-04-2013, 12:08 PM #4
while I agree with all of the above;
another thing is that like humans, not all fish have the genes to grow to maximum size.Thar she blows!!!
01-04-2013, 12:23 PM #5
Also keep in mind that fish stories are exactly that....fish stories.
Some people are terrible at estimating size or reading a ruler. Other times people think they have a species that they dont. Just assume that most of what you hear is partially true :)
Some fish, such as angelfish, can be stunted by water quality and tank size. And like previously said, not all fish will reach maximum possible size just based on diet and genetics.55 Gallon Freshwater Tank (semi-planted) 48"x21"x13"
Video of 55GAL Tank - DEC 2012
01-04-2013, 12:43 PM #6
Some of the hormones released by fish will stunt other fish's growth too I believe. Here is a piece of a pretty good lecture and the lecture notes from a knowledgeable person about stunting, slow growth, and not growing to potential size. http://www.badmanstropicalfish.com/s...t_3-12-04.htmlWhen I go fishing I just place a sharp rock in the water and sit there waiting for all the dead fish to float to the top... Kingfisher
Brutal honesty will be shown on this screen.
I think my fish is adjusting well to the four gallon, He's laying on his side attempting to go to sleep on the bottom of the gravel.
Tolerance is a great thing to have, so is the ability to shut up.
I can explain it to you, but I can't understand it for you.
01-04-2013, 09:27 PM #7
0Originally Posted by CrispySupport your local ichthyofauna - buy a fishing license!
01-05-2013, 01:58 PM #8
0Originally Posted by ddavis1979
01-05-2013, 04:53 PM #9
I've also heard of people who's fish were small and they never seemed to grow until they went into a larger tank and suddenly they have a big growth spurt. I do believe in stunting simple because if an Oscar, that is always known to be large, remains 4" year after year, there is no other explanation for it.
In the case you have mentioned with the two kissing gourami's, I very much doubt they would have two fish known to grow to 12" and both only ended up at 3".
01-05-2013, 06:47 PM #10
0Originally Posted by Lady Hobbs
Also the angelfish I remember was in a 25 gallon. Again, too small for a full grown one but for a 2 inch one that shouldn't be stunting it so much. At least it doesn't seem like it should be.