Tropical Fish Keeping - Aquarium fish care and resources

Tropical Fish Keeping - Aquarium fish care and resources (http://www.tropicalfishkeeping.com/)
-   Freshwater and Tropical Fish (http://www.tropicalfishkeeping.com/freshwater-tropical-fish/)
-   -   Angelfish - Stunted growth??? (http://www.tropicalfishkeeping.com/freshwater-tropical-fish/angelfish-stunted-growth-27563/)

nomel 08-19-2009 07:22 PM

Angelfish - Stunted growth???
 
I'm trying to find a reference for stunted angelfish growth.

I've heard that they secrete a hormone that, at high enough concentrations, limits their size to prevent overcrowding...but I can't actually find anything on the topic...and am wondering if frequent water changes makes this moot.

I find this very interesting. Anyone have a reference or *anything*?

Fishin Pole 08-20-2009 09:21 AM

Never heard of that, but it would be nice to hear from other members and their experience with angelfish.............

nomel 08-20-2009 12:30 PM

Hrm...it's been mentioned to me a few times...that overcrowding causes their bodies to not grow as fast as their organs.

Fishin Pole 08-20-2009 12:37 PM

i have heard that too, but i have never heard of them secreting a hormone...........

nomel 08-20-2009 12:54 PM

Someone on another forum mentioned that this is the way that they detect "overcrowdedness"...it's not visual, of course.


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