Originally Posted by gorangers0525
No. It's an albino longfin. Which I believe only gets to about 4.5 inches. Thanks for the help! I know I probably should've went with a dwarf gourami =/. The pleco and the gourami have gotten along for quite awhile now. I was very suprised at the gourami's random agression. The pleco is waiting in for me in my friends tank until my 29's ready.
Perhaps I can explain this. Many of us have always held that keeping potentially large fish in too small a tank, even when they are small, causes trouble. Only recently have some scientific studies been carried out and these have now proven this. What happens is the "space" restriction prevents the fish from engaging in normal inherent behaviours. There is also the effect of the water conditions, which are less stable in smaller tanks. Fish release pheromones, and these build up and can only be removed with a water change. The larger the tank, the more "spread out" the pheromones, but in a smaller space they quickly build up and affect the fish. The other more commonly-recognized issues of bacteria and nitrification also play into this of course.
This stresses the fish. And stress weakens the immune system. So down the road, the fish may develop health problems that otherwise would never have occurred. Stress also is now known to incite aggression. Even peaceful fish species can get surprisingly aggressive when they are stressed. And naturally-aggressive species--and all gourami fall into this group because they are very territorial and that means defending their territory--can become very strongly aggressive, beyond the "norm." And unfortunately, once this occurs, the fish cannot revert back; the damage has, so to speak, been done and the fish's temperament has changed.
Aggression is about the only way a fish can react to frustration. The small space [to the fish], the presence of other territorial fish of the same or similar species, certain other non-related fish species, etc can all create frustration (stress), and the fish has no other way except to "lash out."
I hope this has helped to explain the change. BTW, the dwarf gourami carries it's own particular set of problems, as noted in our profile [click the shaded name].