Just got two clown knifes yesterday, and one of them choosed a place to stay, behind some plastic plants.
BUT, he stays like hes looking down, pointed down to the gravel, like he is looking for food.
Is this normal in this fishes ???
Mine thinks he's got to hide behind the plants,
even started landscaping which
is what yours might be thinking
by looking at the gravel. He dug
a big section out in his favorite spot
and made the tank look great!