09-27-2010, 02:19 PM
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Originally Posted by fryup
my 3.5 inch male is becomeing very agresive, he is just developing his barbs and if any of my fish swim too close to him then he atacks them . . . . . Is this normal behaviour ? :)
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Is this with any fish, or just bottom fish? If the latter, it is a territorial issue. Also, aggression in otherwise peaceful fish is often caused by environmental issues. If you check the profile of this fish, you will note it needs quite dim lighting, and places to hide. In exposed or brightly lit tanks, such fish can feel "threatened" and respond with increased aggression to all and sundry.