Is This Pleco Healthy?

[Zikofski]

the tank is 330L and yes angels are tiny still , i don't really like the look of the wood from shops don't know why but my main goal is some slate to cart a dark cave area in on the corners my plec loves to sit on the wood and i presumer eat it he is very active at night moves around allot scourging for food and eating the glass wood and finding the pellet i put in for him he seems happy but ye i agree he loves the spot where he hides on the pic so some rocks/slate there to help hide him and make it darker would look nice