Yep, your clown may be eyeing the carpet for a home and your carpet may be eyeing your clown for a meal I took my green carpet back to the lfs after the one they had in a tank for 3 years with a full grown naso ate the naso! Scary looking too I might add, with that poor fish sticking half way out. But those green carpets sure are pretty aren't they? I hated to get rid of mine.