I haven't read our laws governing them in a while but at one time it was illegal to take a grassie and NOT kill it in Texas. Of course if it weren't for the state screwing up they wouldn't be here in the first place. The ystarted out in Lake Conroe and LBJ and when we contacted TP&WD and told them we were killing them in ClearCreek they said we were mistaken and would not even send a warden out to go out with us so we could prove it. So it would not surprise me what they do. I don't know much about commons and their impact but I do know that grassies ruint lake conroe. That is what it will take here in Texas, after they ruin a lake then maybe they will snap.