Originally Posted by Oldfishlady
They can clamp fins for various reasons....sometimes as a response to illness, parasites, injury and sometimes it can be submissive response to another fish, fear etc...all part of their communication just like the color changes and stripes..
i just added a new betta to my tank (its divided i promise!) and he was really agressive at first, almost always flared or half flared, like Antione usually is, Antione was the one who got stress stripes. the new guys almost twice Antiones size! but today his fins are more clamped than ive ever seen a bettas :( and idk why... i dont think hes sick, like i said he was perfectly fine yesterday...