Hi All,
I just noticed my Green Severum shaking and biting and never noticed it doing this before. Is this normal? I have had him about 8 years and have seen him bite the rock before. He does it all the time like hes keeping it clean. He shakes and then bites the same rock Any thoughts? I have a video but cant post it. Thanks!

I just noticed my Green Severum shaking and biting and never noticed it doing this before. Is this normal? I have had him about 8 years and have seen him bite the rock before. He does it all the time like hes keeping it clean. He shakes and then bites the same rock Any thoughts? I have a video but cant post it. Thanks!
